mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-28 07:59:50 +02:00
commit bash-snap-20170626 snapshot
This commit is contained in:
Chet Ramey
@@ -14193,3 +14193,9 @@ expr.c
|
||||
error and either longjmp back to the expression top level or return
|
||||
0 immediately. Fixes bug reported by Eduardo Bustamante
|
||||
<dualbus@gmail.com>
|
||||
|
||||
6/23
|
||||
----
|
||||
doc/{bash.1,bashref.texi}
|
||||
- add text noting that $* and ${array[*]} (unquoted) can also expand
|
||||
to multiple words
|
||||
|
||||
+1611
-1609
File diff suppressed because it is too large
Load Diff
+7
-6
@@ -5,12 +5,12 @@
|
||||
.\" Case Western Reserve University
|
||||
.\" chet.ramey@case.edu
|
||||
.\"
|
||||
.\" Last Change: Thu May 25 15:58:43 EDT 2017
|
||||
.\" Last Change: Fri Jun 23 12:42:34 EDT 2017
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.\"
|
||||
.\" bash_builtins, strip all but Built-Ins section
|
||||
.if \n(zZ=1 .ig zZ
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.if \n(zY=1 .ig zY
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||||
.TH BASH 1 "2017 May 25" "GNU Bash 4.4"
|
||||
.TH BASH 1 "2017 June 23" "GNU Bash 4.4"
|
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.\"
|
||||
.\" There's some problem with having a `@'
|
||||
.\" in a tagged paragraph with the BSD man macros.
|
||||
@@ -2744,10 +2744,11 @@ original word are removed unless they have been quoted themselves
|
||||
(\fIquote removal\fP).
|
||||
.PP
|
||||
Only brace expansion, word splitting, and pathname expansion
|
||||
can change the number of words of the expansion; other expansions
|
||||
can increase the number of words of the expansion; other expansions
|
||||
expand a single word to a single word.
|
||||
The only exceptions to this are the expansions of
|
||||
"\fB$@\fP" and "\fB${\fP\fIname\fP\fB[@]}\fP"
|
||||
"\fB$@\fP" and "\fB${\fP\fIname\fP\fB[@]}\fP",
|
||||
and, in most cases, \fB$*\fP and \fB${\fP\fIname\fP\fB[*]}\fP
|
||||
as explained above (see
|
||||
.SM
|
||||
.BR PARAMETERS ).
|
||||
@@ -9679,8 +9680,8 @@ above). The shell always
|
||||
postpones exiting if any jobs are stopped.
|
||||
.TP 8
|
||||
.B checkwinsize
|
||||
If set, \fBbash\fP checks the window size after each command
|
||||
and, if necessary, updates the values of
|
||||
If set, \fBbash\fP checks the window size after each external (non-builtin)
|
||||
command and, if necessary, updates the values of
|
||||
.SM
|
||||
.B LINES
|
||||
and
|
||||
|
||||
+27
-11
@@ -3,7 +3,7 @@
|
||||
</HEAD>
|
||||
<BODY><TABLE WIDTH=100%>
|
||||
<TR>
|
||||
<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2017 March 22<TH ALIGN=RIGHT width=33%>BASH(1)
|
||||
<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2017 June 23<TH ALIGN=RIGHT width=33%>BASH(1)
|
||||
</TR>
|
||||
</TABLE>
|
||||
<BR><A HREF="#index">Index</A>
|
||||
@@ -3482,10 +3482,11 @@ original word are removed unless they have been quoted themselves
|
||||
<P>
|
||||
|
||||
Only brace expansion, word splitting, and pathname expansion
|
||||
can change the number of words of the expansion; other expansions
|
||||
can increase the number of words of the expansion; other expansions
|
||||
expand a single word to a single word.
|
||||
The only exceptions to this are the expansions of
|
||||
"<B>$@</B>" and "<B>${</B><I>name</I><B>[@]}</B>"
|
||||
"<B>$@</B>" and "<B>${</B><I>name</I><B>[@]}</B>",
|
||||
and, in most cases, <B>$*</B> and <B>${</B><I>name</I><B>[*]}</B>
|
||||
as explained above (see
|
||||
<FONT SIZE=-1><B>PARAMETERS</B>).
|
||||
|
||||
@@ -8728,7 +8729,7 @@ If <B>HISTFILESIZE</B> is unset, or set to null, a non-numeric value,
|
||||
or a numeric value less than zero, the history file is not truncated.
|
||||
When the history file is read,
|
||||
lines beginning with the history comment character followed immediately
|
||||
by a digit are interpreted as timestamps for the preceding history line.
|
||||
by a digit are interpreted as timestamps for the following history line.
|
||||
These timestamps are optionally displayed depending on the value of the
|
||||
<FONT SIZE=-1><B>HISTTIMEFORMAT</B>
|
||||
|
||||
@@ -10535,7 +10536,7 @@ echoed and executed.
|
||||
<P>
|
||||
In the second form, <I>command</I> is re-executed after each instance
|
||||
of <I>pat</I> is replaced by <I>rep</I>.
|
||||
<I>Command</I> is intepreted the same as <I>first</I> above.
|
||||
<I>Command</I> is interpreted the same as <I>first</I> above.
|
||||
A useful alias to use with this is
|
||||
|
||||
<TT>r='fc -s'</TT>,
|
||||
@@ -11125,6 +11126,8 @@ Options, if supplied, have the following meanings:
|
||||
<DD>
|
||||
The first character of <I>delim</I> is used to terminate each input line,
|
||||
rather than newline.
|
||||
If <I>delim</I> is the empty string, <B>mapfile</B> will terminate a line
|
||||
when it reads a NUL character.
|
||||
<DT><B>-n</B>
|
||||
|
||||
<DD>
|
||||
@@ -11440,6 +11443,8 @@ Other <I>name</I> arguments are ignored.
|
||||
<DD>
|
||||
The first character of <I>delim</I> is used to terminate the input line,
|
||||
rather than newline.
|
||||
If <I>delim</I> is the empty string, <B>read</B> will terminate a line
|
||||
when it reads a NUL character.
|
||||
<DT><B>-e</B>
|
||||
|
||||
<DD>
|
||||
@@ -11453,7 +11458,7 @@ is coming from a terminal,
|
||||
</FONT>
|
||||
above) is used to obtain the line.
|
||||
Readline uses the current (or default, if line editing was not previously
|
||||
active) editing settings.
|
||||
active) editing settings, but uses Readline's default filename completion.
|
||||
<DT><B>-i </B><I>text</I>
|
||||
|
||||
<DD>
|
||||
@@ -12273,8 +12278,8 @@ postpones exiting if any jobs are stopped.
|
||||
<DT><B>checkwinsize</B>
|
||||
|
||||
<DD>
|
||||
If set, <B>bash</B> checks the window size after each command
|
||||
and, if necessary, updates the values of
|
||||
If set, <B>bash</B> checks the window size after each external (non-builtin)
|
||||
command and, if necessary, updates the values of
|
||||
<FONT SIZE=-1><B>LINES</B>
|
||||
|
||||
</FONT>
|
||||
@@ -12291,6 +12296,11 @@ If set,
|
||||
attempts to save all lines of a multiple-line
|
||||
command in the same history entry. This allows
|
||||
easy re-editing of multi-line commands.
|
||||
This option is enabled by default, but only has an effect if command
|
||||
history is enabled, as described above under
|
||||
<FONT SIZE=-1><B>HISTORY</B>.
|
||||
|
||||
</FONT>
|
||||
<DT><B>compat31</B>
|
||||
|
||||
<DD>
|
||||
@@ -12641,6 +12651,12 @@ If set, and the
|
||||
|
||||
option is enabled, multi-line commands are saved to the history with
|
||||
embedded newlines rather than using semicolon separators where possible.
|
||||
<DT><B>localvar_inherit</B>
|
||||
|
||||
<DD>
|
||||
If set, local variables inherit the value and attributes of a variable of
|
||||
the same name that exists at a previous scope before any new value is
|
||||
assigned. The nameref attribute is not inherited.
|
||||
<DT><B>login_shell</B>
|
||||
|
||||
<DD>
|
||||
@@ -13437,7 +13453,7 @@ If the <B>-n</B> option is supplied, <B>wait</B> waits for any job to
|
||||
terminate and returns its exit status.
|
||||
If the <B>-f</B> option is supplied, and job control is enabled,
|
||||
<B>wait</B> forces <I>id</I> to terminate before returning its status,
|
||||
intead of returning when it changes status.
|
||||
instead of returning when it changes status.
|
||||
If
|
||||
<I>id</I>
|
||||
|
||||
@@ -13732,7 +13748,7 @@ There may be only one active coprocess at a time.
|
||||
<HR>
|
||||
<TABLE WIDTH=100%>
|
||||
<TR>
|
||||
<TH ALIGN=LEFT width=33%>GNU Bash 4.4<TH ALIGN=CENTER width=33%>2017 March 22<TH ALIGN=RIGHT width=33%>BASH(1)
|
||||
<TH ALIGN=LEFT width=33%>GNU Bash 4.4<TH ALIGN=CENTER width=33%>2017 June 23<TH ALIGN=RIGHT width=33%>BASH(1)
|
||||
</TR>
|
||||
</TABLE>
|
||||
<HR>
|
||||
@@ -13838,6 +13854,6 @@ There may be only one active coprocess at a time.
|
||||
</DL>
|
||||
<HR>
|
||||
This document was created by man2html from bash.1.<BR>
|
||||
Time: 03 April 2017 16:34:05 EDT
|
||||
Time: 26 June 2017 09:16:53 EDT
|
||||
</BODY>
|
||||
</HTML>
|
||||
|
||||
+167
-156
@@ -2,9 +2,9 @@ This is bash.info, produced by makeinfo version 6.3 from
|
||||
bashref.texi.
|
||||
|
||||
This text is a brief description of the features that are present in the
|
||||
Bash shell (version 4.4, 22 March 2017).
|
||||
Bash shell (version 4.4, 23 June 2017).
|
||||
|
||||
This is Edition 4.4, last updated 22 March 2017, of 'The GNU Bash
|
||||
This is Edition 4.4, last updated 23 June 2017, of 'The GNU Bash
|
||||
Reference Manual', for 'Bash', Version 4.4.
|
||||
|
||||
Copyright (C) 1988-2017 Free Software Foundation, Inc.
|
||||
@@ -27,10 +27,10 @@ Bash Features
|
||||
*************
|
||||
|
||||
This text is a brief description of the features that are present in the
|
||||
Bash shell (version 4.4, 22 March 2017). The Bash home page is
|
||||
Bash shell (version 4.4, 23 June 2017). The Bash home page is
|
||||
<http://www.gnu.org/software/bash/>.
|
||||
|
||||
This is Edition 4.4, last updated 22 March 2017, of 'The GNU Bash
|
||||
This is Edition 4.4, last updated 23 June 2017, of 'The GNU Bash
|
||||
Reference Manual', for 'Bash', Version 4.4.
|
||||
|
||||
Bash contains features that appear in other popular shells, and some
|
||||
@@ -1127,7 +1127,7 @@ first.
|
||||
Finally, Parallel can be used to run a sequence of shell commands in
|
||||
parallel, similar to 'cat file | bash'. It is not uncommon to take a
|
||||
list of filenames, create a series of shell commands to operate on them,
|
||||
and feed that list of commnds to a shell. Parallel can speed this up.
|
||||
and feed that list of commands to a shell. Parallel can speed this up.
|
||||
Assuming that 'file' contains a list of shell commands, one per line,
|
||||
|
||||
parallel -j 10 < file
|
||||
@@ -1503,10 +1503,10 @@ original word are removed unless they have been quoted themselves (QUOTE
|
||||
REMOVAL).
|
||||
|
||||
Only brace expansion, word splitting, and filename expansion can
|
||||
change the number of words of the expansion; other expansions expand a
|
||||
increase the number of words of the expansion; other expansions expand a
|
||||
single word to a single word. The only exceptions to this are the
|
||||
expansions of '"$@"' (*note Special Parameters::) and '"${NAME[@]}"'
|
||||
(*note Arrays::).
|
||||
expansions of '"$@"' and '$*' (*note Special Parameters::), and
|
||||
'"${NAME[@]}"' and '${NAME[*]}' (*note Arrays::).
|
||||
|
||||
After all expansions, 'quote removal' (*note Quote Removal::) is
|
||||
performed.
|
||||
@@ -3665,7 +3665,8 @@ standard.
|
||||
|
||||
'-d'
|
||||
The first character of DELIM is used to terminate each input
|
||||
line, rather than newline.
|
||||
line, rather than newline. If DELIM is the empty string,
|
||||
'mapfile' will terminate a line when it reads a NUL character.
|
||||
'-n'
|
||||
Copy at most COUNT lines. If COUNT is 0, all lines are
|
||||
copied.
|
||||
@@ -3777,12 +3778,14 @@ standard.
|
||||
|
||||
'-d DELIM'
|
||||
The first character of DELIM is used to terminate the input
|
||||
line, rather than newline.
|
||||
line, rather than newline. If DELIM is the empty string,
|
||||
'read' will terminate a line when it reads a NUL character.
|
||||
|
||||
'-e'
|
||||
Readline (*note Command Line Editing::) is used to obtain the
|
||||
line. Readline uses the current (or default, if line editing
|
||||
was not previously active) editing settings.
|
||||
was not previously active) editing settings, but uses
|
||||
Readline's default filename completion.
|
||||
|
||||
'-i TEXT'
|
||||
If Readline is being used to read the line, TEXT is placed
|
||||
@@ -4366,13 +4369,16 @@ This builtin allows you to change additional shell optional behavior.
|
||||
are stopped.
|
||||
|
||||
'checkwinsize'
|
||||
If set, Bash checks the window size after each command and, if
|
||||
necessary, updates the values of 'LINES' and 'COLUMNS'.
|
||||
If set, Bash checks the window size after each external
|
||||
(non-builtin) command and, if necessary, updates the values of
|
||||
'LINES' and 'COLUMNS'.
|
||||
|
||||
'cmdhist'
|
||||
If set, Bash attempts to save all lines of a multiple-line
|
||||
command in the same history entry. This allows easy
|
||||
re-editing of multi-line commands.
|
||||
re-editing of multi-line commands. This option is enabled by
|
||||
default, but only has an effect if command history is enabled
|
||||
(*note Bash History Facilities::).
|
||||
|
||||
'compat31'
|
||||
If set, Bash changes its behavior to that of version 3.1 with
|
||||
@@ -4579,6 +4585,12 @@ This builtin allows you to change additional shell optional behavior.
|
||||
commands are saved to the history with embedded newlines
|
||||
rather than using semicolon separators where possible.
|
||||
|
||||
'localvar_inherit'
|
||||
If set, local variables inherit the value and attributes of a
|
||||
variable of the same name that exists at a previous scope
|
||||
before any new value is assigned. The NAMEREF attribute is
|
||||
not inherited.
|
||||
|
||||
'login_shell'
|
||||
The shell sets this option if it is started as a login shell
|
||||
(*note Invoking Bash::). The value may not be changed.
|
||||
@@ -8893,10 +8905,9 @@ function and bind it to a particular command using 'complete -F'.
|
||||
|
||||
The following function provides completions for the 'cd' builtin. It
|
||||
is a reasonably good example of what shell functions must do when used
|
||||
for completion. This function uses the word passsed as '$2' to
|
||||
determine the directory name to complete. You can also use the
|
||||
'COMP_WORDS' array variable; the current word is indexed by the
|
||||
'COMP_CWORD' variable.
|
||||
for completion. This function uses the word passed as '$2' to determine
|
||||
the directory name to complete. You can also use the 'COMP_WORDS' array
|
||||
variable; the current word is indexed by the 'COMP_CWORD' variable.
|
||||
|
||||
The function relies on the 'complete' and 'compgen' builtins to do
|
||||
much of the work, adding only the things that the Bash 'cd' does beyond
|
||||
@@ -10826,13 +10837,13 @@ D.1 Index of Shell Builtin Commands
|
||||
* mapfile: Bash Builtins. (line 369)
|
||||
* popd: Directory Stack Builtins.
|
||||
(line 35)
|
||||
* printf: Bash Builtins. (line 414)
|
||||
* printf: Bash Builtins. (line 415)
|
||||
* pushd: Directory Stack Builtins.
|
||||
(line 53)
|
||||
* pwd: Bourne Shell Builtins.
|
||||
(line 205)
|
||||
* read: Bash Builtins. (line 458)
|
||||
* readarray: Bash Builtins. (line 550)
|
||||
* read: Bash Builtins. (line 459)
|
||||
* readarray: Bash Builtins. (line 553)
|
||||
* readonly: Bourne Shell Builtins.
|
||||
(line 215)
|
||||
* return: Bourne Shell Builtins.
|
||||
@@ -10841,7 +10852,7 @@ D.1 Index of Shell Builtin Commands
|
||||
* shift: Bourne Shell Builtins.
|
||||
(line 255)
|
||||
* shopt: The Shopt Builtin. (line 9)
|
||||
* source: Bash Builtins. (line 559)
|
||||
* source: Bash Builtins. (line 562)
|
||||
* suspend: Job Control Builtins.
|
||||
(line 104)
|
||||
* test: Bourne Shell Builtins.
|
||||
@@ -10850,12 +10861,12 @@ D.1 Index of Shell Builtin Commands
|
||||
(line 343)
|
||||
* trap: Bourne Shell Builtins.
|
||||
(line 349)
|
||||
* type: Bash Builtins. (line 564)
|
||||
* typeset: Bash Builtins. (line 596)
|
||||
* ulimit: Bash Builtins. (line 602)
|
||||
* type: Bash Builtins. (line 567)
|
||||
* typeset: Bash Builtins. (line 599)
|
||||
* ulimit: Bash Builtins. (line 605)
|
||||
* umask: Bourne Shell Builtins.
|
||||
(line 398)
|
||||
* unalias: Bash Builtins. (line 701)
|
||||
* unalias: Bash Builtins. (line 704)
|
||||
* unset: Bourne Shell Builtins.
|
||||
(line 416)
|
||||
* wait: Job Control Builtins.
|
||||
@@ -11412,7 +11423,7 @@ D.5 Concept Index
|
||||
* history list: Bash History Facilities.
|
||||
(line 6)
|
||||
* History, how to use: A Programmable Completion Example.
|
||||
(line 114)
|
||||
(line 113)
|
||||
* identifier: Definitions. (line 51)
|
||||
* initialization file, readline: Readline Init File. (line 6)
|
||||
* installation: Basic Installation. (line 6)
|
||||
@@ -11490,134 +11501,134 @@ D.5 Concept Index
|
||||
|
||||
|
||||
Tag Table:
|
||||
Node: Top891
|
||||
Node: Introduction2805
|
||||
Node: What is Bash?3021
|
||||
Node: What is a shell?4135
|
||||
Node: Definitions6673
|
||||
Node: Basic Shell Features9624
|
||||
Node: Shell Syntax10843
|
||||
Node: Shell Operation11869
|
||||
Node: Quoting13162
|
||||
Node: Escape Character14462
|
||||
Node: Single Quotes14947
|
||||
Node: Double Quotes15295
|
||||
Node: ANSI-C Quoting16573
|
||||
Node: Locale Translation17832
|
||||
Node: Comments18728
|
||||
Node: Shell Commands19346
|
||||
Node: Simple Commands20218
|
||||
Node: Pipelines20849
|
||||
Node: Lists23781
|
||||
Node: Compound Commands25520
|
||||
Node: Looping Constructs26532
|
||||
Node: Conditional Constructs29027
|
||||
Node: Command Grouping40082
|
||||
Node: Coprocesses41561
|
||||
Node: GNU Parallel43393
|
||||
Node: Shell Functions47366
|
||||
Node: Shell Parameters54565
|
||||
Node: Positional Parameters58978
|
||||
Node: Special Parameters59878
|
||||
Node: Shell Expansions63215
|
||||
Node: Brace Expansion65309
|
||||
Node: Tilde Expansion68143
|
||||
Node: Shell Parameter Expansion70491
|
||||
Node: Command Substitution84623
|
||||
Node: Arithmetic Expansion85978
|
||||
Node: Process Substitution86910
|
||||
Node: Word Splitting88030
|
||||
Node: Filename Expansion89974
|
||||
Node: Pattern Matching92348
|
||||
Node: Quote Removal96334
|
||||
Node: Redirections96629
|
||||
Node: Executing Commands106187
|
||||
Node: Simple Command Expansion106857
|
||||
Node: Command Search and Execution108787
|
||||
Node: Command Execution Environment111123
|
||||
Node: Environment114107
|
||||
Node: Exit Status115766
|
||||
Node: Signals117436
|
||||
Node: Shell Scripts119403
|
||||
Node: Shell Builtin Commands121918
|
||||
Node: Bourne Shell Builtins123952
|
||||
Node: Bash Builtins144552
|
||||
Node: Modifying Shell Behavior173197
|
||||
Node: The Set Builtin173542
|
||||
Node: The Shopt Builtin183955
|
||||
Node: Special Builtins199853
|
||||
Node: Shell Variables200832
|
||||
Node: Bourne Shell Variables201269
|
||||
Node: Bash Variables203373
|
||||
Node: Bash Features233166
|
||||
Node: Invoking Bash234065
|
||||
Node: Bash Startup Files240014
|
||||
Node: Interactive Shells245117
|
||||
Node: What is an Interactive Shell?245527
|
||||
Node: Is this Shell Interactive?246176
|
||||
Node: Interactive Shell Behavior246991
|
||||
Node: Bash Conditional Expressions250479
|
||||
Node: Shell Arithmetic254845
|
||||
Node: Aliases257662
|
||||
Node: Arrays260210
|
||||
Node: The Directory Stack265372
|
||||
Node: Directory Stack Builtins266156
|
||||
Node: Controlling the Prompt269124
|
||||
Node: The Restricted Shell271886
|
||||
Node: Bash POSIX Mode273711
|
||||
Node: Job Control284062
|
||||
Node: Job Control Basics284522
|
||||
Node: Job Control Builtins289490
|
||||
Node: Job Control Variables294217
|
||||
Node: Command Line Editing295373
|
||||
Node: Introduction and Notation297044
|
||||
Node: Readline Interaction298667
|
||||
Node: Readline Bare Essentials299858
|
||||
Node: Readline Movement Commands301641
|
||||
Node: Readline Killing Commands302601
|
||||
Node: Readline Arguments304519
|
||||
Node: Searching305563
|
||||
Node: Readline Init File307749
|
||||
Node: Readline Init File Syntax308896
|
||||
Node: Conditional Init Constructs329083
|
||||
Node: Sample Init File331608
|
||||
Node: Bindable Readline Commands334725
|
||||
Node: Commands For Moving335929
|
||||
Node: Commands For History337778
|
||||
Node: Commands For Text342073
|
||||
Node: Commands For Killing345462
|
||||
Node: Numeric Arguments347943
|
||||
Node: Commands For Completion349082
|
||||
Node: Keyboard Macros353273
|
||||
Node: Miscellaneous Commands353960
|
||||
Node: Readline vi Mode359836
|
||||
Node: Programmable Completion360743
|
||||
Node: Programmable Completion Builtins368204
|
||||
Node: A Programmable Completion Example378090
|
||||
Node: Using History Interactively383342
|
||||
Node: Bash History Facilities384026
|
||||
Node: Bash History Builtins387027
|
||||
Node: History Interaction391319
|
||||
Node: Event Designators394283
|
||||
Node: Word Designators395502
|
||||
Node: Modifiers397139
|
||||
Node: Installing Bash398541
|
||||
Node: Basic Installation399678
|
||||
Node: Compilers and Options402369
|
||||
Node: Compiling For Multiple Architectures403110
|
||||
Node: Installation Names404773
|
||||
Node: Specifying the System Type405591
|
||||
Node: Sharing Defaults406307
|
||||
Node: Operation Controls406980
|
||||
Node: Optional Features407938
|
||||
Node: Reporting Bugs418464
|
||||
Node: Major Differences From The Bourne Shell419658
|
||||
Node: GNU Free Documentation License436510
|
||||
Node: Indexes461687
|
||||
Node: Builtin Index462141
|
||||
Node: Reserved Word Index468968
|
||||
Node: Variable Index471416
|
||||
Node: Function Index487094
|
||||
Node: Concept Index500397
|
||||
Node: Top889
|
||||
Node: Introduction2801
|
||||
Node: What is Bash?3017
|
||||
Node: What is a shell?4131
|
||||
Node: Definitions6669
|
||||
Node: Basic Shell Features9620
|
||||
Node: Shell Syntax10839
|
||||
Node: Shell Operation11865
|
||||
Node: Quoting13158
|
||||
Node: Escape Character14458
|
||||
Node: Single Quotes14943
|
||||
Node: Double Quotes15291
|
||||
Node: ANSI-C Quoting16569
|
||||
Node: Locale Translation17828
|
||||
Node: Comments18724
|
||||
Node: Shell Commands19342
|
||||
Node: Simple Commands20214
|
||||
Node: Pipelines20845
|
||||
Node: Lists23777
|
||||
Node: Compound Commands25516
|
||||
Node: Looping Constructs26528
|
||||
Node: Conditional Constructs29023
|
||||
Node: Command Grouping40078
|
||||
Node: Coprocesses41557
|
||||
Node: GNU Parallel43389
|
||||
Node: Shell Functions47363
|
||||
Node: Shell Parameters54562
|
||||
Node: Positional Parameters58975
|
||||
Node: Special Parameters59875
|
||||
Node: Shell Expansions63212
|
||||
Node: Brace Expansion65335
|
||||
Node: Tilde Expansion68169
|
||||
Node: Shell Parameter Expansion70517
|
||||
Node: Command Substitution84649
|
||||
Node: Arithmetic Expansion86004
|
||||
Node: Process Substitution86936
|
||||
Node: Word Splitting88056
|
||||
Node: Filename Expansion90000
|
||||
Node: Pattern Matching92374
|
||||
Node: Quote Removal96360
|
||||
Node: Redirections96655
|
||||
Node: Executing Commands106213
|
||||
Node: Simple Command Expansion106883
|
||||
Node: Command Search and Execution108813
|
||||
Node: Command Execution Environment111149
|
||||
Node: Environment114133
|
||||
Node: Exit Status115792
|
||||
Node: Signals117462
|
||||
Node: Shell Scripts119429
|
||||
Node: Shell Builtin Commands121944
|
||||
Node: Bourne Shell Builtins123978
|
||||
Node: Bash Builtins144578
|
||||
Node: Modifying Shell Behavior173487
|
||||
Node: The Set Builtin173832
|
||||
Node: The Shopt Builtin184245
|
||||
Node: Special Builtins200580
|
||||
Node: Shell Variables201559
|
||||
Node: Bourne Shell Variables201996
|
||||
Node: Bash Variables204100
|
||||
Node: Bash Features233893
|
||||
Node: Invoking Bash234792
|
||||
Node: Bash Startup Files240741
|
||||
Node: Interactive Shells245844
|
||||
Node: What is an Interactive Shell?246254
|
||||
Node: Is this Shell Interactive?246903
|
||||
Node: Interactive Shell Behavior247718
|
||||
Node: Bash Conditional Expressions251206
|
||||
Node: Shell Arithmetic255572
|
||||
Node: Aliases258389
|
||||
Node: Arrays260937
|
||||
Node: The Directory Stack266099
|
||||
Node: Directory Stack Builtins266883
|
||||
Node: Controlling the Prompt269851
|
||||
Node: The Restricted Shell272613
|
||||
Node: Bash POSIX Mode274438
|
||||
Node: Job Control284789
|
||||
Node: Job Control Basics285249
|
||||
Node: Job Control Builtins290217
|
||||
Node: Job Control Variables294944
|
||||
Node: Command Line Editing296100
|
||||
Node: Introduction and Notation297771
|
||||
Node: Readline Interaction299394
|
||||
Node: Readline Bare Essentials300585
|
||||
Node: Readline Movement Commands302368
|
||||
Node: Readline Killing Commands303328
|
||||
Node: Readline Arguments305246
|
||||
Node: Searching306290
|
||||
Node: Readline Init File308476
|
||||
Node: Readline Init File Syntax309623
|
||||
Node: Conditional Init Constructs329810
|
||||
Node: Sample Init File332335
|
||||
Node: Bindable Readline Commands335452
|
||||
Node: Commands For Moving336656
|
||||
Node: Commands For History338505
|
||||
Node: Commands For Text342800
|
||||
Node: Commands For Killing346189
|
||||
Node: Numeric Arguments348670
|
||||
Node: Commands For Completion349809
|
||||
Node: Keyboard Macros354000
|
||||
Node: Miscellaneous Commands354687
|
||||
Node: Readline vi Mode360563
|
||||
Node: Programmable Completion361470
|
||||
Node: Programmable Completion Builtins368931
|
||||
Node: A Programmable Completion Example378817
|
||||
Node: Using History Interactively384068
|
||||
Node: Bash History Facilities384752
|
||||
Node: Bash History Builtins387753
|
||||
Node: History Interaction392045
|
||||
Node: Event Designators395009
|
||||
Node: Word Designators396228
|
||||
Node: Modifiers397865
|
||||
Node: Installing Bash399267
|
||||
Node: Basic Installation400404
|
||||
Node: Compilers and Options403095
|
||||
Node: Compiling For Multiple Architectures403836
|
||||
Node: Installation Names405499
|
||||
Node: Specifying the System Type406317
|
||||
Node: Sharing Defaults407033
|
||||
Node: Operation Controls407706
|
||||
Node: Optional Features408664
|
||||
Node: Reporting Bugs419190
|
||||
Node: Major Differences From The Bourne Shell420384
|
||||
Node: GNU Free Documentation License437236
|
||||
Node: Indexes462413
|
||||
Node: Builtin Index462867
|
||||
Node: Reserved Word Index469694
|
||||
Node: Variable Index472142
|
||||
Node: Function Index487820
|
||||
Node: Concept Index501123
|
||||
|
||||
End Tag Table
|
||||
|
||||
Binary file not shown.
+3752
-3732
File diff suppressed because it is too large
Load Diff
+1
-1
@@ -34,7 +34,7 @@
|
||||
\entry{mapfile}{56}{\code {mapfile}}
|
||||
\entry{printf}{56}{\code {printf}}
|
||||
\entry{read}{57}{\code {read}}
|
||||
\entry{readarray}{58}{\code {readarray}}
|
||||
\entry{readarray}{59}{\code {readarray}}
|
||||
\entry{source}{59}{\code {source}}
|
||||
\entry{type}{59}{\code {type}}
|
||||
\entry{typeset}{59}{\code {typeset}}
|
||||
|
||||
+1
-1
@@ -56,7 +56,7 @@
|
||||
\entry {\code {pwd}}{46}
|
||||
\initial {R}
|
||||
\entry {\code {read}}{57}
|
||||
\entry {\code {readarray}}{58}
|
||||
\entry {\code {readarray}}{59}
|
||||
\entry {\code {readonly}}{46}
|
||||
\entry {\code {return}}{47}
|
||||
\initial {S}
|
||||
|
||||
Binary file not shown.
+24
-11
@@ -1,9 +1,9 @@
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||||
<html>
|
||||
<!-- This text is a brief description of the features that are present in
|
||||
the Bash shell (version 4.4, 22 March 2017).
|
||||
the Bash shell (version 4.4, 23 June 2017).
|
||||
|
||||
This is Edition 4.4, last updated 22 March 2017,
|
||||
This is Edition 4.4, last updated 23 June 2017,
|
||||
of The GNU Bash Reference Manual,
|
||||
for Bash, Version 4.4.
|
||||
|
||||
@@ -284,10 +284,10 @@ Next: <a href="#Introduction" accesskey="n" rel="next">Introduction</a>, Previou
|
||||
<h1 class="top">Bash Features</h1>
|
||||
|
||||
<p>This text is a brief description of the features that are present in
|
||||
the Bash shell (version 4.4, 22 March 2017).
|
||||
the Bash shell (version 4.4, 23 June 2017).
|
||||
The Bash home page is <a href="http://www.gnu.org/software/bash/">http://www.gnu.org/software/bash/</a>.
|
||||
</p>
|
||||
<p>This is Edition 4.4, last updated 22 March 2017,
|
||||
<p>This is Edition 4.4, last updated 23 June 2017,
|
||||
of <cite>The GNU Bash Reference Manual</cite>,
|
||||
for <code>Bash</code>, Version 4.4.
|
||||
</p>
|
||||
@@ -1755,7 +1755,7 @@ Adding the <samp>-k</samp> option
|
||||
<p>Finally, Parallel can be used to run a sequence of shell commands in parallel,
|
||||
similar to ‘<samp>cat file | bash</samp>’.
|
||||
It is not uncommon to take a list of filenames, create a series of shell
|
||||
commands to operate on them, and feed that list of commnds to a shell.
|
||||
commands to operate on them, and feed that list of commands to a shell.
|
||||
Parallel can speed this up. Assuming that <samp>file</samp> contains a list of
|
||||
shell commands, one per line,
|
||||
</p>
|
||||
@@ -2276,10 +2276,11 @@ original word are removed unless they have been quoted themselves
|
||||
(<var>quote removal</var>).
|
||||
</p>
|
||||
<p>Only brace expansion, word splitting, and filename expansion
|
||||
can change the number of words of the expansion; other expansions
|
||||
can increase the number of words of the expansion; other expansions
|
||||
expand a single word to a single word.
|
||||
The only exceptions to this are the expansions of
|
||||
<code>"$@"</code> (see <a href="#Special-Parameters">Special Parameters</a>) and <code>"${<var>name</var>[@]}"</code>
|
||||
<code>"$@"</code> and <code>$*</code> (see <a href="#Special-Parameters">Special Parameters</a>), and
|
||||
<code>"${<var>name</var>[@]}"</code> and <code>${<var>name</var>[*]}</code>
|
||||
(see <a href="#Arrays">Arrays</a>).
|
||||
</p>
|
||||
<p>After all expansions, <code>quote removal</code> (see <a href="#Quote-Removal">Quote Removal</a>)
|
||||
@@ -5084,6 +5085,8 @@ Options, if supplied, have the following meanings:
|
||||
<dt><code>-d</code></dt>
|
||||
<dd><p>The first character of <var>delim</var> is used to terminate each input line,
|
||||
rather than newline.
|
||||
If <var>delim</var> is the empty string, <code>mapfile</code> will terminate a line
|
||||
when it reads a NUL character.
|
||||
</p></dd>
|
||||
<dt><code>-n</code></dt>
|
||||
<dd><p>Copy at most <var>count</var> lines. If <var>count</var> is 0, all lines are copied.
|
||||
@@ -5222,12 +5225,14 @@ Other <var>name</var> arguments are ignored.
|
||||
<dt><code>-d <var>delim</var></code></dt>
|
||||
<dd><p>The first character of <var>delim</var> is used to terminate the input line,
|
||||
rather than newline.
|
||||
If <var>delim</var> is the empty string, <code>read</code> will terminate a line
|
||||
when it reads a NUL character.
|
||||
</p>
|
||||
</dd>
|
||||
<dt><code>-e</code></dt>
|
||||
<dd><p>Readline (see <a href="#Command-Line-Editing">Command Line Editing</a>) is used to obtain the line.
|
||||
Readline uses the current (or default, if line editing was not previously
|
||||
active) editing settings.
|
||||
active) editing settings, but uses Readline’s default filename completion.
|
||||
</p>
|
||||
</dd>
|
||||
<dt><code>-i <var>text</var></code></dt>
|
||||
@@ -5976,8 +5981,8 @@ The shell always postpones exiting if any jobs are stopped.
|
||||
</p>
|
||||
</dd>
|
||||
<dt><code>checkwinsize</code></dt>
|
||||
<dd><p>If set, Bash checks the window size after each command
|
||||
and, if necessary, updates the values of
|
||||
<dd><p>If set, Bash checks the window size after each external (non-builtin)
|
||||
command and, if necessary, updates the values of
|
||||
<code>LINES</code> and <code>COLUMNS</code>.
|
||||
</p>
|
||||
</dd>
|
||||
@@ -5986,6 +5991,8 @@ The shell always postpones exiting if any jobs are stopped.
|
||||
attempts to save all lines of a multiple-line
|
||||
command in the same history entry. This allows
|
||||
easy re-editing of multi-line commands.
|
||||
This option is enabled by default, but only has an effect if command
|
||||
history is enabled (see <a href="#Bash-History-Facilities">Bash History Facilities</a>).
|
||||
</p>
|
||||
</dd>
|
||||
<dt><code>compat31</code></dt>
|
||||
@@ -6230,6 +6237,12 @@ option is enabled, multi-line commands are saved to the history with
|
||||
embedded newlines rather than using semicolon separators where possible.
|
||||
</p>
|
||||
</dd>
|
||||
<dt><code>localvar_inherit</code></dt>
|
||||
<dd><p>If set, local variables inherit the value and attributes of a variable of
|
||||
the same name that exists at a previous scope before any new value is
|
||||
assigned. The <var>nameref</var> attribute is not inherited.
|
||||
</p>
|
||||
</dd>
|
||||
<dt><code>login_shell</code></dt>
|
||||
<dd><p>The shell sets this option if it is started as a login shell
|
||||
(see <a href="#Invoking-Bash">Invoking Bash</a>).
|
||||
@@ -12173,7 +12186,7 @@ a shell function and bind it to a particular command using <code>complete -F</co
|
||||
</p>
|
||||
<p>The following function provides completions for the <code>cd</code> builtin.
|
||||
It is a reasonably good example of what shell functions must do when
|
||||
used for completion. This function uses the word passsed as <code>$2</code>
|
||||
used for completion. This function uses the word passed as <code>$2</code>
|
||||
to determine the directory name to complete. You can also use the
|
||||
<code>COMP_WORDS</code> array variable; the current word is indexed by the
|
||||
<code>COMP_CWORD</code> variable.
|
||||
|
||||
+167
-156
@@ -2,9 +2,9 @@ This is bashref.info, produced by makeinfo version 6.3 from
|
||||
bashref.texi.
|
||||
|
||||
This text is a brief description of the features that are present in the
|
||||
Bash shell (version 4.4, 22 March 2017).
|
||||
Bash shell (version 4.4, 23 June 2017).
|
||||
|
||||
This is Edition 4.4, last updated 22 March 2017, of 'The GNU Bash
|
||||
This is Edition 4.4, last updated 23 June 2017, of 'The GNU Bash
|
||||
Reference Manual', for 'Bash', Version 4.4.
|
||||
|
||||
Copyright (C) 1988-2017 Free Software Foundation, Inc.
|
||||
@@ -27,10 +27,10 @@ Bash Features
|
||||
*************
|
||||
|
||||
This text is a brief description of the features that are present in the
|
||||
Bash shell (version 4.4, 22 March 2017). The Bash home page is
|
||||
Bash shell (version 4.4, 23 June 2017). The Bash home page is
|
||||
<http://www.gnu.org/software/bash/>.
|
||||
|
||||
This is Edition 4.4, last updated 22 March 2017, of 'The GNU Bash
|
||||
This is Edition 4.4, last updated 23 June 2017, of 'The GNU Bash
|
||||
Reference Manual', for 'Bash', Version 4.4.
|
||||
|
||||
Bash contains features that appear in other popular shells, and some
|
||||
@@ -1127,7 +1127,7 @@ first.
|
||||
Finally, Parallel can be used to run a sequence of shell commands in
|
||||
parallel, similar to 'cat file | bash'. It is not uncommon to take a
|
||||
list of filenames, create a series of shell commands to operate on them,
|
||||
and feed that list of commnds to a shell. Parallel can speed this up.
|
||||
and feed that list of commands to a shell. Parallel can speed this up.
|
||||
Assuming that 'file' contains a list of shell commands, one per line,
|
||||
|
||||
parallel -j 10 < file
|
||||
@@ -1503,10 +1503,10 @@ original word are removed unless they have been quoted themselves (QUOTE
|
||||
REMOVAL).
|
||||
|
||||
Only brace expansion, word splitting, and filename expansion can
|
||||
change the number of words of the expansion; other expansions expand a
|
||||
increase the number of words of the expansion; other expansions expand a
|
||||
single word to a single word. The only exceptions to this are the
|
||||
expansions of '"$@"' (*note Special Parameters::) and '"${NAME[@]}"'
|
||||
(*note Arrays::).
|
||||
expansions of '"$@"' and '$*' (*note Special Parameters::), and
|
||||
'"${NAME[@]}"' and '${NAME[*]}' (*note Arrays::).
|
||||
|
||||
After all expansions, 'quote removal' (*note Quote Removal::) is
|
||||
performed.
|
||||
@@ -3665,7 +3665,8 @@ standard.
|
||||
|
||||
'-d'
|
||||
The first character of DELIM is used to terminate each input
|
||||
line, rather than newline.
|
||||
line, rather than newline. If DELIM is the empty string,
|
||||
'mapfile' will terminate a line when it reads a NUL character.
|
||||
'-n'
|
||||
Copy at most COUNT lines. If COUNT is 0, all lines are
|
||||
copied.
|
||||
@@ -3777,12 +3778,14 @@ standard.
|
||||
|
||||
'-d DELIM'
|
||||
The first character of DELIM is used to terminate the input
|
||||
line, rather than newline.
|
||||
line, rather than newline. If DELIM is the empty string,
|
||||
'read' will terminate a line when it reads a NUL character.
|
||||
|
||||
'-e'
|
||||
Readline (*note Command Line Editing::) is used to obtain the
|
||||
line. Readline uses the current (or default, if line editing
|
||||
was not previously active) editing settings.
|
||||
was not previously active) editing settings, but uses
|
||||
Readline's default filename completion.
|
||||
|
||||
'-i TEXT'
|
||||
If Readline is being used to read the line, TEXT is placed
|
||||
@@ -4366,13 +4369,16 @@ This builtin allows you to change additional shell optional behavior.
|
||||
are stopped.
|
||||
|
||||
'checkwinsize'
|
||||
If set, Bash checks the window size after each command and, if
|
||||
necessary, updates the values of 'LINES' and 'COLUMNS'.
|
||||
If set, Bash checks the window size after each external
|
||||
(non-builtin) command and, if necessary, updates the values of
|
||||
'LINES' and 'COLUMNS'.
|
||||
|
||||
'cmdhist'
|
||||
If set, Bash attempts to save all lines of a multiple-line
|
||||
command in the same history entry. This allows easy
|
||||
re-editing of multi-line commands.
|
||||
re-editing of multi-line commands. This option is enabled by
|
||||
default, but only has an effect if command history is enabled
|
||||
(*note Bash History Facilities::).
|
||||
|
||||
'compat31'
|
||||
If set, Bash changes its behavior to that of version 3.1 with
|
||||
@@ -4579,6 +4585,12 @@ This builtin allows you to change additional shell optional behavior.
|
||||
commands are saved to the history with embedded newlines
|
||||
rather than using semicolon separators where possible.
|
||||
|
||||
'localvar_inherit'
|
||||
If set, local variables inherit the value and attributes of a
|
||||
variable of the same name that exists at a previous scope
|
||||
before any new value is assigned. The NAMEREF attribute is
|
||||
not inherited.
|
||||
|
||||
'login_shell'
|
||||
The shell sets this option if it is started as a login shell
|
||||
(*note Invoking Bash::). The value may not be changed.
|
||||
@@ -8893,10 +8905,9 @@ function and bind it to a particular command using 'complete -F'.
|
||||
|
||||
The following function provides completions for the 'cd' builtin. It
|
||||
is a reasonably good example of what shell functions must do when used
|
||||
for completion. This function uses the word passsed as '$2' to
|
||||
determine the directory name to complete. You can also use the
|
||||
'COMP_WORDS' array variable; the current word is indexed by the
|
||||
'COMP_CWORD' variable.
|
||||
for completion. This function uses the word passed as '$2' to determine
|
||||
the directory name to complete. You can also use the 'COMP_WORDS' array
|
||||
variable; the current word is indexed by the 'COMP_CWORD' variable.
|
||||
|
||||
The function relies on the 'complete' and 'compgen' builtins to do
|
||||
much of the work, adding only the things that the Bash 'cd' does beyond
|
||||
@@ -10826,13 +10837,13 @@ D.1 Index of Shell Builtin Commands
|
||||
* mapfile: Bash Builtins. (line 369)
|
||||
* popd: Directory Stack Builtins.
|
||||
(line 35)
|
||||
* printf: Bash Builtins. (line 414)
|
||||
* printf: Bash Builtins. (line 415)
|
||||
* pushd: Directory Stack Builtins.
|
||||
(line 53)
|
||||
* pwd: Bourne Shell Builtins.
|
||||
(line 205)
|
||||
* read: Bash Builtins. (line 458)
|
||||
* readarray: Bash Builtins. (line 550)
|
||||
* read: Bash Builtins. (line 459)
|
||||
* readarray: Bash Builtins. (line 553)
|
||||
* readonly: Bourne Shell Builtins.
|
||||
(line 215)
|
||||
* return: Bourne Shell Builtins.
|
||||
@@ -10841,7 +10852,7 @@ D.1 Index of Shell Builtin Commands
|
||||
* shift: Bourne Shell Builtins.
|
||||
(line 255)
|
||||
* shopt: The Shopt Builtin. (line 9)
|
||||
* source: Bash Builtins. (line 559)
|
||||
* source: Bash Builtins. (line 562)
|
||||
* suspend: Job Control Builtins.
|
||||
(line 104)
|
||||
* test: Bourne Shell Builtins.
|
||||
@@ -10850,12 +10861,12 @@ D.1 Index of Shell Builtin Commands
|
||||
(line 343)
|
||||
* trap: Bourne Shell Builtins.
|
||||
(line 349)
|
||||
* type: Bash Builtins. (line 564)
|
||||
* typeset: Bash Builtins. (line 596)
|
||||
* ulimit: Bash Builtins. (line 602)
|
||||
* type: Bash Builtins. (line 567)
|
||||
* typeset: Bash Builtins. (line 599)
|
||||
* ulimit: Bash Builtins. (line 605)
|
||||
* umask: Bourne Shell Builtins.
|
||||
(line 398)
|
||||
* unalias: Bash Builtins. (line 701)
|
||||
* unalias: Bash Builtins. (line 704)
|
||||
* unset: Bourne Shell Builtins.
|
||||
(line 416)
|
||||
* wait: Job Control Builtins.
|
||||
@@ -11412,7 +11423,7 @@ D.5 Concept Index
|
||||
* history list: Bash History Facilities.
|
||||
(line 6)
|
||||
* History, how to use: A Programmable Completion Example.
|
||||
(line 114)
|
||||
(line 113)
|
||||
* identifier: Definitions. (line 51)
|
||||
* initialization file, readline: Readline Init File. (line 6)
|
||||
* installation: Basic Installation. (line 6)
|
||||
@@ -11490,134 +11501,134 @@ D.5 Concept Index
|
||||
|
||||
|
||||
Tag Table:
|
||||
Node: Top891
|
||||
Node: Introduction2805
|
||||
Node: What is Bash?3021
|
||||
Node: What is a shell?4135
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
Node: Builtin Index462141
|
||||
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|
||||
Node: Variable Index471416
|
||||
Node: Function Index487094
|
||||
Node: Concept Index500397
|
||||
Node: Top889
|
||||
Node: Introduction2801
|
||||
Node: What is Bash?3017
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
Node: Coprocesses41557
|
||||
Node: GNU Parallel43389
|
||||
Node: Shell Functions47363
|
||||
Node: Shell Parameters54562
|
||||
Node: Positional Parameters58975
|
||||
Node: Special Parameters59875
|
||||
Node: Shell Expansions63212
|
||||
Node: Brace Expansion65335
|
||||
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|
||||
Node: Shell Parameter Expansion70517
|
||||
Node: Command Substitution84649
|
||||
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|
||||
Node: Process Substitution86936
|
||||
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|
||||
Node: Filename Expansion90000
|
||||
Node: Pattern Matching92374
|
||||
Node: Quote Removal96360
|
||||
Node: Redirections96655
|
||||
Node: Executing Commands106213
|
||||
Node: Simple Command Expansion106883
|
||||
Node: Command Search and Execution108813
|
||||
Node: Command Execution Environment111149
|
||||
Node: Environment114133
|
||||
Node: Exit Status115792
|
||||
Node: Signals117462
|
||||
Node: Shell Scripts119429
|
||||
Node: Shell Builtin Commands121944
|
||||
Node: Bourne Shell Builtins123978
|
||||
Node: Bash Builtins144578
|
||||
Node: Modifying Shell Behavior173487
|
||||
Node: The Set Builtin173832
|
||||
Node: The Shopt Builtin184245
|
||||
Node: Special Builtins200580
|
||||
Node: Shell Variables201559
|
||||
Node: Bourne Shell Variables201996
|
||||
Node: Bash Variables204100
|
||||
Node: Bash Features233893
|
||||
Node: Invoking Bash234792
|
||||
Node: Bash Startup Files240741
|
||||
Node: Interactive Shells245844
|
||||
Node: What is an Interactive Shell?246254
|
||||
Node: Is this Shell Interactive?246903
|
||||
Node: Interactive Shell Behavior247718
|
||||
Node: Bash Conditional Expressions251206
|
||||
Node: Shell Arithmetic255572
|
||||
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|
||||
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|
||||
Node: The Directory Stack266099
|
||||
Node: Directory Stack Builtins266883
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
Node: Programmable Completion Builtins368931
|
||||
Node: A Programmable Completion Example378817
|
||||
Node: Using History Interactively384068
|
||||
Node: Bash History Facilities384752
|
||||
Node: Bash History Builtins387753
|
||||
Node: History Interaction392045
|
||||
Node: Event Designators395009
|
||||
Node: Word Designators396228
|
||||
Node: Modifiers397865
|
||||
Node: Installing Bash399267
|
||||
Node: Basic Installation400404
|
||||
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|
||||
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|
||||
Node: Installation Names405499
|
||||
Node: Specifying the System Type406317
|
||||
Node: Sharing Defaults407033
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
Node: GNU Free Documentation License437236
|
||||
Node: Indexes462413
|
||||
Node: Builtin Index462867
|
||||
Node: Reserved Word Index469694
|
||||
Node: Variable Index472142
|
||||
Node: Function Index487820
|
||||
Node: Concept Index501123
|
||||
|
||||
End Tag Table
|
||||
|
||||
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|
||||
This is pdfTeX, Version 3.14159265-2.6-1.40.17 (TeX Live 2016/MacPorts 2016_4) (preloaded format=pdfetex 2017.1.6) 3 APR 2017 16:34
|
||||
This is pdfTeX, Version 3.14159265-2.6-1.40.17 (TeX Live 2016/MacPorts 2016_5) (preloaded format=pdfetex 2017.1.6) 26 JUN 2017 09:16
|
||||
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|
||||
restricted \write18 enabled.
|
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|
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@@ -243,7 +243,7 @@ arallel -k traceroute[]
|
||||
|
||||
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|
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[]@texttt mapfile [-d @textttsl de-lim@texttt ] [-n @textttsl count@texttt ] [
|
||||
-O @textttsl ori-gin@texttt ] [-s @textttsl count@texttt ] [-t] [-u @textttsl f
|
||||
d@texttt ][]
|
||||
@@ -257,7 +257,7 @@ d@texttt ][]
|
||||
.etc.
|
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|
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[-O @textttsl ori-gin@texttt ] [-s @textttsl count@texttt ] [-t] [-u @textttsl
|
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[58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] Chapter 5
|
||||
[71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] Chapter 6 [83]
|
||||
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|
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[]@texttt bash [long-opt] [-ir] [-abefhkmnptuvxdBCDHP] [-o @textttsl op-tion@t
|
||||
exttt ] [-O @textttsl shopt_option@texttt ] [@textttsl ar-
|
||||
|
||||
@@ -285,7 +285,7 @@ exttt ] [-O @textttsl shopt_option@texttt ] [@textttsl ar-
|
||||
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|
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||||
|
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|
||||
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|
||||
[]@texttt bash [long-opt] [-abefhkmnptuvxdBCDHP] [-o @textttsl op-tion@texttt
|
||||
] [-O @textttsl shopt_option@texttt ] -c @textttsl string @texttt [@textttsl ar
|
||||
-
|
||||
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||||
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|
||||
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|
||||
[]@texttt bash [long-opt] -s [-abefhkmnptuvxdBCDHP] [-o @textttsl op-tion@text
|
||||
tt ] [-O @textttsl shopt_option@texttt ] [@textttsl ar-
|
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|
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||||
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||||
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y Fq(\015)f Fu(1988{2017)35 b(F)-8 b(ree)31 b(Soft)m(w)m(are)h(F)-8
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||||
b(oundation,)31 b(Inc.)390 4902 y(P)m(ermission)21 b(is)f(gran)m(ted)h
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||||
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|
||||
f(to)150 1189 y(`)p Ft(cat)g(file)f(|)h(bash)p Fu('.)53
|
||||
b(It)35 b(is)g(not)g(uncommon)f(to)i(tak)m(e)g(a)f(list)h(of)f
|
||||
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||||
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||||
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||||
b(that)h Ft(file)e Fu(con)m(tains)i(a)g(list)g(of)g(shell)f(commands,)h
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(one)f(p)s(er)g(line,)390 1542 y Ft(parallel)46 b(-j)h(10)g(<)g(file)
|
||||
150 1676 y Fu(will)37 b(ev)-5 b(aluate)38 b(the)f(commands)f(using)g
|
||||
@@ -9673,17 +9673,18 @@ Fu(.)50 b(This)33 b(is)h(p)s(erformed)e(at)j(the)f(same)g(time)g(as)g
|
||||
(haracters)h(presen)m(t)e(in)g(the)g(original)i(w)m(ord)e(are)150
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2872 y(remo)m(v)m(ed)h(unless)f(they)h(ha)m(v)m(e)g(b)s(een)f(quoted)g
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(themselv)m(es)i(\()p Fr(quote)f(remo)m(v)-5 b(al)t Fu(\).)275
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||||
3011 y(Only)35 b(brace)i(expansion,)h(w)m(ord)e(splitting,)j(and)d
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b(The)150 3230 y(only)32 b(exceptions)i(to)f(this)f(are)h(the)f
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(expansions)g(of)h Ft("$@")e Fu(\(see)i(Section)g(3.4.2)h([Sp)s(ecial)f
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(P)m(arameters],)150 3340 y(page)e(21\))h(and)d Ft("${)p
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Fj(name)p Ft([@]}")e Fu(\(see)32 b(Section)f(6.7)g([Arra)m(ys],)h(page)
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f(93\).)275 3478 y(After)41 b(all)i(expansions,)h Ft(quote)29
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b(removal)40 b Fu(\(see)i(Section)h(3.5.9)g([Quote)f(Remo)m(v)-5
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(expansions)g(of)g Ft("$@")f Fu(and)g Ft($*)g Fu(\(see)i(Section)f
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(3.4.2)i([Sp)s(ecial)e(P)m(arameters],)150 3340 y(page)31
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b(21\),)h(and)e Ft("${)p Fj(name)p Ft([@]}")d Fu(and)i
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Ft(${)p Fj(name)p Ft([*]})f Fu(\(see)j(Section)h(6.7)f([Arra)m(ys],)g
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(page)g(93\).)275 3478 y(After)41 b(all)i(expansions,)h
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||||
3791 y Fk(3.5.1)63 b(Brace)40 b(Expansion)150 3938 y
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||||
Fu(Brace)32 b(expansion)f(is)f(a)i(mec)m(hanism)f(b)m(y)f(whic)m(h)h
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||||
(arbitrary)f(strings)h(ma)m(y)g(b)s(e)f(generated.)43
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||||
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(function,)h(an)f(in)m(v)-5 b(alid)29 b Fr(name)k Fu(is)28
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Fj(n)p Ft(])630 953 y Fu(Exit)31 b(a)g(login)g(shell,)g(returning)e(a)i
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b(ariable.)150 674 y Ft(logout)870 807 y(logout)46 b([)p
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Fj(n)p Ft(])630 940 y Fu(Exit)31 b(a)g(login)g(shell,)g(returning)e(a)i
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||||
1116 y Ft(mapfile)870 1252 y(mapfile)46 b([-d)h Fj(delim)p
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Fj(count)p Ft(])h([-t])f([-u)h Fj(fd)p Ft(])1061 1362
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||||
Fj(count)p Ft(])h([-t])f([-u)h Fj(fd)p Ft(])1061 1338
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||||
y([-C)g Fj(callback)p Ft(])e([-c)i Fj(quantum)p Ft(])f([)p
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||||
Fj(array)p Ft(])630 1498 y Fu(Read)38 b(lines)f(from)g(the)h(standard)e
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||||
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b(The)28 b(v)-5 b(ariable)29 b Ft(MAPFILE)e Fu(is)i(the)630
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1717 y(default)i Fr(arra)m(y)p Fu(.)41 b(Options,)30
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1690 y(default)i Fr(arra)m(y)p Fu(.)41 b(Options,)30
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Fr(delim)g Fu(is)f(used)g(to)h(terminate)h(eac)m(h)g(input)d(line,)1110
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b Fu(Cop)m(y)30 b(at)h(most)g Fr(coun)m(t)i Fu(lines.)41
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2315 y Ft(-O)384 b Fu(Begin)31 b(assigning)g(to)g Fr(arra)m(y)39
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||||
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||||
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||||
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||||
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||||
(h)g(call)h(to)f Fr(callbac)m(k)p Fu(.)630 3401 y(If)36
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||||
b Ft(-C)g Fu(is)g(sp)s(eci\014ed)g(without)g Ft(-c)p
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||||
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||||
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||||
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||||
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|
||||
Fu(is)630 3729 y(ev)-5 b(aluated)32 b(after)e(the)h(line)g(is)f(read)g
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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(\014le)h(descriptor)f Fr(fd)j Fu(instead)e(of)f(the)h(standard)e
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||||
(input.)630 3002 y Ft(-C)384 b Fu(Ev)-5 b(aluate)33 b
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||||
Fr(callbac)m(k)39 b Fu(eac)m(h)33 b(time)f Fr(quan)m(tum)p
|
||||
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||||
3112 y(tion)g(sp)s(eci\014es)f Fr(quan)m(tum)p Fu(.)630
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||||
3268 y Ft(-c)384 b Fu(Sp)s(ecify)30 b(the)g(n)m(um)m(b)s(er)f(of)i
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||||
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||||
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||||
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||||
g(but)g(b)s(efore)g(the)h(arra)m(y)g(elemen)m(t)g(is)g(assigned.)630
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||||
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|
||||
Ft(mapfile)c Fu(will)j(clear)g Fr(arra)m(y)34 b Fu(b)s(efore)24
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b(assigning)630 3975 y(to)31 b(it.)630 4111 y Ft(mapfile)41
|
||||
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||||
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||||
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||||
Ft(])g Fj(format)f Ft([)p Fj(arguments)p Ft(])630 4656
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||||
4394 y Ft(printf)870 4526 y(printf)46 b([-v)h Fj(var)p
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||||
Ft(])g Fj(format)f Ft([)p Fj(arguments)p Ft(])630 4659
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||||
y Fu(W)-8 b(rite)27 b(the)g(formatted)f Fr(argumen)m(ts)k
|
||||
Fu(to)d(the)f(standard)f(output)h(under)e(the)i(con)m(trol)i(of)e(the)
|
||||
630 4765 y Fr(format)p Fu(.)66 b(The)39 b Ft(-v)f Fu(option)h(causes)g
|
||||
630 4769 y Fr(format)p Fu(.)66 b(The)39 b Ft(-v)f Fu(option)h(causes)g
|
||||
(the)g(output)g(to)g(b)s(e)f(assigned)h(to)h(the)f(v)-5
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||||
b(ariable)39 b Fr(v)-5 b(ar)630 4875 y Fu(rather)30 b(than)g(b)s(eing)g
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||||
b(ariable)39 b Fr(v)-5 b(ar)630 4878 y Fu(rather)30 b(than)g(b)s(eing)g
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||||
(prin)m(ted)g(to)h(the)g(standard)e(output.)630 5011
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||||
y(The)36 b Fr(format)i Fu(is)f(a)f(c)m(haracter)i(string)e(whic)m(h)g
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||||
(con)m(tains)i(three)e(t)m(yp)s(es)g(of)h(ob)5 b(jects:)53
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||||
@@ -12341,199 +12344,204 @@ b Fj(aname)114 b Fu(The)34 b(w)m(ords)f(are)i(assigned)f(to)h(sequen)m
|
||||
b(elemen)m(ts)h(are)e(remo)m(v)m(ed)i(from)d Fr(aname)34
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||||
b Fu(b)s(efore)1110 518 y(the)d(assignmen)m(t.)41 b(Other)30
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||||
b Fr(name)36 b Fu(argumen)m(ts)30 b(are)h(ignored.)630
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667 y Ft(-d)f Fj(delim)114 b Fu(The)41 b(\014rst)h(c)m(haracter)h(of)f
|
||||
671 y Ft(-d)f Fj(delim)114 b Fu(The)41 b(\014rst)h(c)m(haracter)h(of)f
|
||||
Fr(delim)g Fu(is)g(used)g(to)g(terminate)h(the)f(input)f(line,)1110
|
||||
777 y(rather)30 b(than)g(newline.)630 927 y Ft(-e)384
|
||||
b Fu(Readline)46 b(\(see)g(Chapter)e(8)h([Command)f(Line)h(Editing],)50
|
||||
b(page)45 b(106\))i(is)1110 1036 y(used)37 b(to)i(obtain)g(the)f(line.)
|
||||
65 b(Readline)39 b(uses)e(the)i(curren)m(t)f(\(or)g(default,)j(if)1110
|
||||
1146 y(line)31 b(editing)g(w)m(as)f(not)h(previously)f(activ)m(e\))j
|
||||
(editing)e(settings.)630 1295 y Ft(-i)f Fj(text)162 b
|
||||
Fu(If)36 b(Readline)i(is)f(b)s(eing)g(used)f(to)h(read)g(the)g(line,)j
|
||||
Fr(text)f Fu(is)e(placed)h(in)m(to)g(the)1110 1405 y(editing)31
|
||||
b(bu\013er)e(b)s(efore)h(editing)h(b)s(egins.)630 1554
|
||||
y Ft(-n)f Fj(nchars)66 b Ft(read)38 b Fu(returns)f(after)j(reading)f
|
||||
Fr(nc)m(hars)j Fu(c)m(haracters)e(rather)f(than)g(w)m(aiting)1110
|
||||
1664 y(for)d(a)h(complete)h(line)f(of)g(input,)g(but)f(honors)g(a)h
|
||||
(delimiter)g(if)f(few)m(er)h(than)1110 1773 y Fr(nc)m(hars)d
|
||||
Fu(c)m(haracters)e(are)e(read)h(b)s(efore)f(the)g(delimiter.)630
|
||||
1923 y Ft(-N)g Fj(nchars)66 b Ft(read)39 b Fu(returns)f(after)j
|
||||
(reading)e(exactly)j Fr(nc)m(hars)h Fu(c)m(haracters)f(rather)d(than)
|
||||
1110 2032 y(w)m(aiting)32 b(for)f(a)g(complete)i(line)e(of)g(input,)g
|
||||
(unless)f(EOF)h(is)g(encoun)m(tered)g(or)1110 2142 y
|
||||
Ft(read)f Fu(times)i(out.)43 b(Delimiter)33 b(c)m(haracters)f(encoun)m
|
||||
(tered)g(in)f(the)g(input)g(are)1110 2252 y(not)g(treated)h(sp)s
|
||||
(ecially)f(and)f(do)h(not)g(cause)g Ft(read)e Fu(to)j(return)d(un)m
|
||||
(til)i Fr(nc)m(hars)1110 2361 y Fu(c)m(haracters)26 b(are)f(read.)38
|
||||
b(The)24 b(result)g(is)h(not)f(split)h(on)f(the)h(c)m(haracters)h(in)e
|
||||
Ft(IFS)p Fu(;)1110 2471 y(the)e(in)m(ten)m(t)i(is)e(that)h(the)f(v)-5
|
||||
781 y(rather)31 b(than)g(newline.)42 b(If)30 b Fr(delim)h
|
||||
Fu(is)g(the)h(empt)m(y)f(string,)g Ft(read)f Fu(will)h(termi-)1110
|
||||
891 y(nate)g(a)g(line)f(when)g(it)h(reads)f(a)h(NUL)f(c)m(haracter.)630
|
||||
1044 y Ft(-e)384 b Fu(Readline)46 b(\(see)g(Chapter)e(8)h([Command)f
|
||||
(Line)h(Editing],)50 b(page)45 b(106\))i(is)1110 1154
|
||||
y(used)37 b(to)i(obtain)g(the)f(line.)65 b(Readline)39
|
||||
b(uses)e(the)i(curren)m(t)f(\(or)g(default,)j(if)1110
|
||||
1263 y(line)h(editing)g(w)m(as)g(not)g(previously)f(activ)m(e\))k
|
||||
(editing)d(settings,)j(but)c(uses)1110 1373 y(Readline's)31
|
||||
b(default)g(\014lename)f(completion.)630 1526 y Ft(-i)g
|
||||
Fj(text)162 b Fu(If)36 b(Readline)i(is)f(b)s(eing)g(used)f(to)h(read)g
|
||||
(the)g(line,)j Fr(text)f Fu(is)e(placed)h(in)m(to)g(the)1110
|
||||
1636 y(editing)31 b(bu\013er)e(b)s(efore)h(editing)h(b)s(egins.)630
|
||||
1789 y Ft(-n)f Fj(nchars)66 b Ft(read)38 b Fu(returns)f(after)j
|
||||
(reading)f Fr(nc)m(hars)j Fu(c)m(haracters)e(rather)f(than)g(w)m
|
||||
(aiting)1110 1899 y(for)d(a)h(complete)h(line)f(of)g(input,)g(but)f
|
||||
(honors)g(a)h(delimiter)g(if)f(few)m(er)h(than)1110 2008
|
||||
y Fr(nc)m(hars)d Fu(c)m(haracters)e(are)e(read)h(b)s(efore)f(the)g
|
||||
(delimiter.)630 2162 y Ft(-N)g Fj(nchars)66 b Ft(read)39
|
||||
b Fu(returns)f(after)j(reading)e(exactly)j Fr(nc)m(hars)h
|
||||
Fu(c)m(haracters)f(rather)d(than)1110 2271 y(w)m(aiting)32
|
||||
b(for)f(a)g(complete)i(line)e(of)g(input,)g(unless)f(EOF)h(is)g(encoun)
|
||||
m(tered)g(or)1110 2381 y Ft(read)f Fu(times)i(out.)43
|
||||
b(Delimiter)33 b(c)m(haracters)f(encoun)m(tered)g(in)f(the)g(input)g
|
||||
(are)1110 2491 y(not)g(treated)h(sp)s(ecially)f(and)f(do)h(not)g(cause)
|
||||
g Ft(read)e Fu(to)j(return)d(un)m(til)i Fr(nc)m(hars)1110
|
||||
2600 y Fu(c)m(haracters)26 b(are)f(read.)38 b(The)24
|
||||
b(result)g(is)h(not)f(split)h(on)f(the)h(c)m(haracters)h(in)e
|
||||
Ft(IFS)p Fu(;)1110 2710 y(the)e(in)m(ten)m(t)i(is)e(that)h(the)f(v)-5
|
||||
b(ariable)23 b(is)f(assigned)g(exactly)i(the)e(c)m(haracters)i(read)
|
||||
1110 2580 y(\(with)30 b(the)h(exception)h(of)e(bac)m(kslash;)h(see)g
|
||||
(the)g Ft(-r)f Fu(option)h(b)s(elo)m(w\).)630 2730 y
|
||||
1110 2819 y(\(with)30 b(the)h(exception)h(of)e(bac)m(kslash;)h(see)g
|
||||
(the)g Ft(-r)f Fu(option)h(b)s(elo)m(w\).)630 2973 y
|
||||
Ft(-p)f Fj(prompt)66 b Fu(Displa)m(y)38 b Fr(prompt)p
|
||||
Fu(,)g(without)e(a)h(trailing)h(newline,)h(b)s(efore)d(attempting)i(to)
|
||||
1110 2839 y(read)f(an)m(y)h(input.)60 b(The)37 b(prompt)g(is)g(displa)m
|
||||
(y)m(ed)h(only)f(if)g(input)g(is)g(coming)1110 2949 y(from)30
|
||||
b(a)h(terminal.)630 3098 y Ft(-r)384 b Fu(If)21 b(this)h(option)g(is)f
|
||||
1110 3082 y(read)f(an)m(y)h(input.)60 b(The)37 b(prompt)g(is)g(displa)m
|
||||
(y)m(ed)h(only)f(if)g(input)g(is)g(coming)1110 3192 y(from)30
|
||||
b(a)h(terminal.)630 3345 y Ft(-r)384 b Fu(If)21 b(this)h(option)g(is)f
|
||||
(giv)m(en,)k(bac)m(kslash)d(do)s(es)f(not)h(act)h(as)f(an)f(escap)s(e)h
|
||||
(c)m(haracter.)1110 3208 y(The)30 b(bac)m(kslash)i(is)f(considered)g
|
||||
(c)m(haracter.)1110 3455 y(The)30 b(bac)m(kslash)i(is)f(considered)g
|
||||
(to)h(b)s(e)e(part)h(of)g(the)g(line.)43 b(In)30 b(particular,)i(a)1110
|
||||
3318 y(bac)m(kslash-newline)f(pair)f(ma)m(y)h(not)g(b)s(e)f(used)f(as)i
|
||||
(a)g(line)f(con)m(tin)m(uation.)630 3467 y Ft(-s)384
|
||||
3565 y(bac)m(kslash-newline)f(pair)f(ma)m(y)h(not)g(b)s(e)f(used)f(as)i
|
||||
(a)g(line)f(con)m(tin)m(uation.)630 3718 y Ft(-s)384
|
||||
b Fu(Silen)m(t)28 b(mo)s(de.)40 b(If)27 b(input)f(is)i(coming)g(from)f
|
||||
(a)h(terminal,)h(c)m(haracters)g(are)f(not)1110 3577
|
||||
y(ec)m(ho)s(ed.)630 3726 y Ft(-t)i Fj(timeout)1110 3836
|
||||
(a)h(terminal,)h(c)m(haracters)g(are)f(not)1110 3828
|
||||
y(ec)m(ho)s(ed.)630 3981 y Ft(-t)i Fj(timeout)1110 4091
|
||||
y Fu(Cause)42 b Ft(read)g Fu(to)h(time)h(out)f(and)f(return)f(failure)i
|
||||
(if)g(a)g(complete)h(line)f(of)1110 3945 y(input)26 b(\(or)h(a)g(sp)s
|
||||
(if)g(a)g(complete)h(line)f(of)1110 4200 y(input)26 b(\(or)h(a)g(sp)s
|
||||
(eci\014ed)f(n)m(um)m(b)s(er)g(of)h(c)m(haracters\))h(is)f(not)g(read)g
|
||||
(within)f Fr(time-)1110 4055 y(out)37 b Fu(seconds.)53
|
||||
(within)f Fr(time-)1110 4310 y(out)37 b Fu(seconds.)53
|
||||
b Fr(timeout)38 b Fu(ma)m(y)d(b)s(e)f(a)h(decimal)h(n)m(um)m(b)s(er)d
|
||||
(with)h(a)h(fractional)1110 4164 y(p)s(ortion)29 b(follo)m(wing)h(the)f
|
||||
(with)h(a)h(fractional)1110 4419 y(p)s(ortion)29 b(follo)m(wing)h(the)f
|
||||
(decimal)h(p)s(oin)m(t.)40 b(This)29 b(option)g(is)g(only)g(e\013ectiv)
|
||||
m(e)j(if)1110 4274 y Ft(read)j Fu(is)i(reading)g(input)e(from)h(a)h
|
||||
m(e)j(if)1110 4529 y Ft(read)j Fu(is)i(reading)g(input)e(from)h(a)h
|
||||
(terminal,)i(pip)s(e,)e(or)g(other)f(sp)s(ecial)i(\014le;)1110
|
||||
4384 y(it)31 b(has)g(no)g(e\013ect)h(when)e(reading)h(from)g(regular)g
|
||||
4639 y(it)31 b(has)g(no)g(e\013ect)h(when)e(reading)h(from)g(regular)g
|
||||
(\014les.)42 b(If)30 b Ft(read)g Fu(times)h(out,)1110
|
||||
4493 y Ft(read)d Fu(sa)m(v)m(es)j(an)m(y)f(partial)h(input)d(read)i(in)
|
||||
4748 y Ft(read)d Fu(sa)m(v)m(es)j(an)m(y)f(partial)h(input)d(read)i(in)
|
||||
m(to)h(the)e(sp)s(eci\014ed)g(v)-5 b(ariable)31 b Fr(name)p
|
||||
Fu(.)1110 4603 y(If)k Fr(timeout)j Fu(is)e(0,)h Ft(read)e
|
||||
Fu(.)1110 4858 y(If)k Fr(timeout)j Fu(is)e(0,)h Ft(read)e
|
||||
Fu(returns)f(immediately)-8 b(,)39 b(without)c(trying)h(to)g(read)1110
|
||||
4712 y(and)30 b(data.)44 b(The)30 b(exit)i(status)f(is)g(0)g(if)g
|
||||
4967 y(and)30 b(data.)44 b(The)30 b(exit)i(status)f(is)g(0)g(if)g
|
||||
(input)f(is)h(a)m(v)-5 b(ailable)34 b(on)c(the)i(sp)s(eci\014ed)1110
|
||||
4822 y(\014le)g(descriptor,)g(non-zero)h(otherwise.)46
|
||||
b(The)31 b(exit)i(status)f(is)g(greater)h(than)1110 4932
|
||||
y(128)f(if)e(the)h(timeout)g(is)f(exceeded.)630 5081
|
||||
5077 y(\014le)g(descriptor,)g(non-zero)h(otherwise.)46
|
||||
b(The)31 b(exit)i(status)f(is)g(greater)h(than)1110 5187
|
||||
y(128)f(if)e(the)h(timeout)g(is)f(exceeded.)630 5340
|
||||
y Ft(-u)g Fj(fd)258 b Fu(Read)31 b(input)e(from)h(\014le)g(descriptor)h
|
||||
Fr(fd)p Fu(.)150 5230 y Ft(readarray)870 5340 y(readarray)45
|
||||
b([-d)i Fj(delim)p Ft(])f([-n)h Fj(count)p Ft(])f([-O)h
|
||||
Fj(origin)p Ft(])f([-s)h Fj(count)p Ft(])f([-t])h([-u)g
|
||||
Fj(fd)p Ft(])p eop end
|
||||
Fr(fd)p Fu(.)p eop end
|
||||
%%Page: 59 65
|
||||
TeXDict begin 59 64 bop 150 -116 a Fu(Chapter)30 b(4:)41
|
||||
b(Shell)30 b(Builtin)h(Commands)2069 b(59)1061 299 y
|
||||
Ft([-C)47 b Fj(callback)p Ft(])e([-c)i Fj(quantum)p Ft(])f([)p
|
||||
Fj(array)p Ft(])630 433 y Fu(Read)38 b(lines)f(from)g(the)h(standard)e
|
||||
(input)g(in)m(to)j(the)e(indexed)g(arra)m(y)h(v)-5 b(ariable)38
|
||||
b Fr(arra)m(y)p Fu(,)i(or)630 543 y(from)30 b(\014le)g(descriptor)h
|
||||
Fr(fd)i Fu(if)d(the)h Ft(-u)e Fu(option)i(is)g(supplied.)630
|
||||
677 y(A)f(synon)m(ym)g(for)g Ft(mapfile)p Fu(.)150 836
|
||||
y Ft(source)870 971 y(source)46 b Fj(filename)630 1105
|
||||
y Fu(A)30 b(synon)m(ym)g(for)g Ft(.)g Fu(\(see)i(Section)f(4.1)g
|
||||
([Bourne)g(Shell)f(Builtins],)h(page)g(43\).)150 1264
|
||||
y Ft(type)870 1398 y(type)47 b([-afptP])e([)p Fj(name)i
|
||||
Ft(...)o(])630 1533 y Fu(F)-8 b(or)42 b(eac)m(h)g Fr(name)p
|
||||
Fu(,)i(indicate)e(ho)m(w)g(it)f(w)m(ould)g(b)s(e)g(in)m(terpreted)g(if)
|
||||
g(used)f(as)i(a)f(command)630 1642 y(name.)630 1777 y(If)g(the)g
|
||||
Ft(-t)g Fu(option)h(is)f(used,)j Ft(type)c Fu(prin)m(ts)h(a)h(single)g
|
||||
(w)m(ord)f(whic)m(h)g(is)g(one)h(of)g(`)p Ft(alias)p
|
||||
Fu(',)630 1886 y(`)p Ft(function)p Fu(',)32 b(`)p Ft(builtin)p
|
||||
Fu(',)g(`)p Ft(file)p Fu(')g(or)h(`)p Ft(keyword)p Fu(',)f(if)h
|
||||
Fr(name)38 b Fu(is)33 b(an)f(alias,)j(shell)e(function,)630
|
||||
1996 y(shell)i(builtin,)g(disk)g(\014le,)h(or)e(shell)h(reserv)m(ed)g
|
||||
(w)m(ord,)h(resp)s(ectiv)m(ely)-8 b(.)55 b(If)34 b(the)h
|
||||
Fr(name)40 b Fu(is)35 b(not)630 2105 y(found,)29 b(then)h(nothing)h(is)
|
||||
f(prin)m(ted,)g(and)g Ft(type)f Fu(returns)g(a)i(failure)g(status.)630
|
||||
2240 y(If)25 b(the)g Ft(-p)g Fu(option)h(is)f(used,)h
|
||||
Ft(type)e Fu(either)h(returns)g(the)g(name)g(of)h(the)f(disk)g(\014le)g
|
||||
(that)h(w)m(ould)630 2349 y(b)s(e)k(executed,)h(or)g(nothing)f(if)g
|
||||
b(Shell)30 b(Builtin)h(Commands)2069 b(59)150 299 y Ft(readarray)870
|
||||
408 y(readarray)45 b([-d)i Fj(delim)p Ft(])f([-n)h Fj(count)p
|
||||
Ft(])f([-O)h Fj(origin)p Ft(])f([-s)h Fj(count)p Ft(])f([-t])h([-u)g
|
||||
Fj(fd)p Ft(])1061 518 y([-C)g Fj(callback)p Ft(])e([-c)i
|
||||
Fj(quantum)p Ft(])f([)p Fj(array)p Ft(])630 650 y Fu(Read)38
|
||||
b(lines)f(from)g(the)h(standard)e(input)g(in)m(to)j(the)e(indexed)g
|
||||
(arra)m(y)h(v)-5 b(ariable)38 b Fr(arra)m(y)p Fu(,)i(or)630
|
||||
760 y(from)30 b(\014le)g(descriptor)h Fr(fd)i Fu(if)d(the)h
|
||||
Ft(-u)e Fu(option)i(is)g(supplied.)630 892 y(A)f(synon)m(ym)g(for)g
|
||||
Ft(mapfile)p Fu(.)150 1047 y Ft(source)870 1179 y(source)46
|
||||
b Fj(filename)630 1312 y Fu(A)30 b(synon)m(ym)g(for)g
|
||||
Ft(.)g Fu(\(see)i(Section)f(4.1)g([Bourne)g(Shell)f(Builtins],)h(page)g
|
||||
(43\).)150 1467 y Ft(type)870 1599 y(type)47 b([-afptP])e([)p
|
||||
Fj(name)i Ft(...)o(])630 1731 y Fu(F)-8 b(or)42 b(eac)m(h)g
|
||||
Fr(name)p Fu(,)i(indicate)e(ho)m(w)g(it)f(w)m(ould)g(b)s(e)g(in)m
|
||||
(terpreted)g(if)g(used)f(as)i(a)f(command)630 1841 y(name.)630
|
||||
1973 y(If)g(the)g Ft(-t)g Fu(option)h(is)f(used,)j Ft(type)c
|
||||
Fu(prin)m(ts)h(a)h(single)g(w)m(ord)f(whic)m(h)g(is)g(one)h(of)g(`)p
|
||||
Ft(alias)p Fu(',)630 2083 y(`)p Ft(function)p Fu(',)32
|
||||
b(`)p Ft(builtin)p Fu(',)g(`)p Ft(file)p Fu(')g(or)h(`)p
|
||||
Ft(keyword)p Fu(',)f(if)h Fr(name)38 b Fu(is)33 b(an)f(alias,)j(shell)e
|
||||
(function,)630 2192 y(shell)i(builtin,)g(disk)g(\014le,)h(or)e(shell)h
|
||||
(reserv)m(ed)g(w)m(ord,)h(resp)s(ectiv)m(ely)-8 b(.)55
|
||||
b(If)34 b(the)h Fr(name)40 b Fu(is)35 b(not)630 2302
|
||||
y(found,)29 b(then)h(nothing)h(is)f(prin)m(ted,)g(and)g
|
||||
Ft(type)f Fu(returns)g(a)i(failure)g(status.)630 2434
|
||||
y(If)25 b(the)g Ft(-p)g Fu(option)h(is)f(used,)h Ft(type)e
|
||||
Fu(either)h(returns)g(the)g(name)g(of)h(the)f(disk)g(\014le)g(that)h(w)
|
||||
m(ould)630 2544 y(b)s(e)k(executed,)h(or)g(nothing)f(if)g
|
||||
Ft(-t)g Fu(w)m(ould)g(not)h(return)e(`)p Ft(file)p Fu('.)630
|
||||
2484 y(The)h Ft(-P)g Fu(option)h(forces)g(a)g(path)f(searc)m(h)h(for)g
|
||||
2676 y(The)h Ft(-P)g Fu(option)h(forces)g(a)g(path)f(searc)m(h)h(for)g
|
||||
(eac)m(h)g Fr(name)p Fu(,)g(ev)m(en)g(if)g Ft(-t)f Fu(w)m(ould)g(not)h
|
||||
(return)630 2593 y(`)p Ft(file)p Fu('.)630 2728 y(If)f(a)g(command)g
|
||||
(return)630 2785 y(`)p Ft(file)p Fu('.)630 2918 y(If)f(a)g(command)g
|
||||
(is)g(hashed,)f Ft(-p)h Fu(and)f Ft(-P)g Fu(prin)m(t)h(the)g(hashed)f
|
||||
(v)-5 b(alue,)31 b(whic)m(h)f(is)g(not)g(neces-)630 2837
|
||||
(v)-5 b(alue,)31 b(whic)m(h)f(is)g(not)g(neces-)630 3027
|
||||
y(sarily)h(the)f(\014le)h(that)g(app)s(ears)e(\014rst)h(in)g
|
||||
Ft($PATH)p Fu(.)630 2971 y(If)22 b(the)i Ft(-a)e Fu(option)h(is)g
|
||||
Ft($PATH)p Fu(.)630 3160 y(If)22 b(the)i Ft(-a)e Fu(option)h(is)g
|
||||
(used,)h Ft(type)e Fu(returns)f(all)j(of)f(the)g(places)h(that)f(con)m
|
||||
(tain)i(an)d(executable)630 3081 y(named)32 b Fr(\014le)p
|
||||
(tain)i(an)d(executable)630 3269 y(named)32 b Fr(\014le)p
|
||||
Fu(.)49 b(This)32 b(includes)h(aliases)h(and)e(functions,)i(if)f(and)f
|
||||
(only)h(if)g(the)g Ft(-p)f Fu(option)i(is)630 3191 y(not)d(also)g
|
||||
(used.)630 3325 y(If)f(the)g Ft(-f)g Fu(option)g(is)h(used,)e
|
||||
(only)h(if)g(the)g Ft(-p)f Fu(option)i(is)630 3379 y(not)d(also)g
|
||||
(used.)630 3511 y(If)f(the)g Ft(-f)g Fu(option)g(is)h(used,)e
|
||||
Ft(type)g Fu(do)s(es)h(not)h(attempt)g(to)g(\014nd)d(shell)j
|
||||
(functions,)f(as)g(with)630 3435 y(the)h Ft(command)d
|
||||
Fu(builtin.)630 3569 y(The)j(return)f(status)h(is)g(zero)h(if)f(all)h
|
||||
(functions,)f(as)g(with)630 3621 y(the)h Ft(command)d
|
||||
Fu(builtin.)630 3753 y(The)j(return)f(status)h(is)g(zero)h(if)f(all)h
|
||||
(of)f(the)h Fr(names)i Fu(are)e(found,)e(non-zero)i(if)f(an)m(y)g(are)h
|
||||
(not)630 3678 y(found.)150 3838 y Ft(typeset)870 3972
|
||||
(not)630 3862 y(found.)150 4017 y Ft(typeset)870 4150
|
||||
y(typeset)46 b([-afFgrxilnrtux])d([-p])k([)p Fj(name)p
|
||||
Ft([=)p Fj(value)p Ft(])d(...)o(])630 4106 y Fu(The)31
|
||||
Ft([=)p Fj(value)p Ft(])d(...)o(])630 4282 y Fu(The)31
|
||||
b Ft(typeset)e Fu(command)i(is)g(supplied)f(for)h(compatibilit)m(y)i
|
||||
(with)e(the)g(Korn)f(shell.)44 b(It)31 b(is)630 4216
|
||||
(with)e(the)g(Korn)f(shell.)44 b(It)31 b(is)630 4391
|
||||
y(a)g(synon)m(ym)f(for)g(the)g Ft(declare)f Fu(builtin)h(command.)150
|
||||
4375 y Ft(ulimit)870 4509 y(ulimit)46 b([-HSabcdefiklmnpqrstuvxPT)o(])c
|
||||
([)p Fj(limit)p Ft(])630 4644 y(ulimit)25 b Fu(pro)m(vides)h(con)m
|
||||
4546 y Ft(ulimit)870 4679 y(ulimit)46 b([-HSabcdefiklmnpqrstuvxPT)o(])c
|
||||
([)p Fj(limit)p Ft(])630 4811 y(ulimit)25 b Fu(pro)m(vides)h(con)m
|
||||
(trol)i(o)m(v)m(er)g(the)f(resources)f(a)m(v)-5 b(ailable)29
|
||||
b(to)e(pro)s(cesses)f(started)h(b)m(y)g(the)630 4753
|
||||
b(to)e(pro)s(cesses)f(started)h(b)m(y)g(the)630 4921
|
||||
y(shell,)i(on)f(systems)g(that)h(allo)m(w)h(suc)m(h)e(con)m(trol.)41
|
||||
b(If)28 b(an)g(option)h(is)f(giv)m(en,)i(it)e(is)h(in)m(terpreted)630
|
||||
4863 y(as)i(follo)m(ws:)630 5022 y Ft(-S)384 b Fu(Change)30
|
||||
5030 y(as)i(follo)m(ws:)630 5185 y Ft(-S)384 b Fu(Change)30
|
||||
b(and)g(rep)s(ort)g(the)g(soft)h(limit)g(asso)s(ciated)h(with)e(a)h
|
||||
(resource.)630 5181 y Ft(-H)384 b Fu(Change)30 b(and)g(rep)s(ort)g(the)
|
||||
g(hard)g(limit)h(asso)s(ciated)h(with)e(a)h(resource.)630
|
||||
5340 y Ft(-a)384 b Fu(All)31 b(curren)m(t)f(limits)h(are)g(rep)s
|
||||
(orted.)p eop end
|
||||
(resource.)630 5340 y Ft(-H)384 b Fu(Change)30 b(and)g(rep)s(ort)g(the)
|
||||
g(hard)g(limit)h(asso)s(ciated)h(with)e(a)h(resource.)p
|
||||
eop end
|
||||
%%Page: 60 66
|
||||
TeXDict begin 60 65 bop 150 -116 a Fu(Chapter)30 b(4:)41
|
||||
b(Shell)30 b(Builtin)h(Commands)2069 b(60)630 299 y Ft(-b)384
|
||||
b Fu(The)30 b(maxim)m(um)g(so)s(c)m(k)m(et)i(bu\013er)e(size.)630
|
||||
462 y Ft(-c)384 b Fu(The)30 b(maxim)m(um)g(size)h(of)g(core)g(\014les)f
|
||||
(created.)630 625 y Ft(-d)384 b Fu(The)30 b(maxim)m(um)g(size)h(of)g(a)
|
||||
g(pro)s(cess's)f(data)h(segmen)m(t.)630 788 y Ft(-e)384
|
||||
b Fu(The)30 b(maxim)m(um)g(sc)m(heduling)h(priorit)m(y)f(\()p
|
||||
Ft(")p Fu(nice)p Ft(")p Fu(\).)630 951 y Ft(-f)384 b
|
||||
Fu(The)30 b(maxim)m(um)g(size)h(of)g(\014les)f(written)h(b)m(y)f(the)g
|
||||
(shell)h(and)f(its)h(c)m(hildren.)630 1114 y Ft(-i)384
|
||||
b(Shell)30 b(Builtin)h(Commands)2069 b(60)630 299 y Ft(-a)384
|
||||
b Fu(All)31 b(curren)m(t)f(limits)h(are)g(rep)s(orted.)630
|
||||
454 y Ft(-b)384 b Fu(The)30 b(maxim)m(um)g(so)s(c)m(k)m(et)i(bu\013er)e
|
||||
(size.)630 610 y Ft(-c)384 b Fu(The)30 b(maxim)m(um)g(size)h(of)g(core)
|
||||
g(\014les)f(created.)630 765 y Ft(-d)384 b Fu(The)30
|
||||
b(maxim)m(um)g(size)h(of)g(a)g(pro)s(cess's)f(data)h(segmen)m(t.)630
|
||||
921 y Ft(-e)384 b Fu(The)30 b(maxim)m(um)g(sc)m(heduling)h(priorit)m(y)
|
||||
f(\()p Ft(")p Fu(nice)p Ft(")p Fu(\).)630 1076 y Ft(-f)384
|
||||
b Fu(The)30 b(maxim)m(um)g(size)h(of)g(\014les)f(written)h(b)m(y)f(the)
|
||||
g(shell)h(and)f(its)h(c)m(hildren.)630 1232 y Ft(-i)384
|
||||
b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i(p)s(ending)e
|
||||
(signals.)630 1277 y Ft(-k)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s
|
||||
(signals.)630 1387 y Ft(-k)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s
|
||||
(er)f(of)i(kqueues)f(that)h(ma)m(y)g(b)s(e)e(allo)s(cated.)630
|
||||
1440 y Ft(-l)384 b Fu(The)30 b(maxim)m(um)g(size)h(that)g(ma)m(y)g(b)s
|
||||
(e)f(lo)s(c)m(k)m(ed)i(in)m(to)f(memory)-8 b(.)630 1603
|
||||
1543 y Ft(-l)384 b Fu(The)30 b(maxim)m(um)g(size)h(that)g(ma)m(y)g(b)s
|
||||
(e)f(lo)s(c)m(k)m(ed)i(in)m(to)f(memory)-8 b(.)630 1698
|
||||
y Ft(-m)384 b Fu(The)36 b(maxim)m(um)g(residen)m(t)h(set)g(size)g
|
||||
(\(man)m(y)g(systems)f(do)h(not)f(honor)g(this)1110 1713
|
||||
y(limit\).)630 1876 y Ft(-n)384 b Fu(The)38 b(maxim)m(um)h(n)m(um)m(b)s
|
||||
(\(man)m(y)g(systems)f(do)h(not)f(honor)g(this)1110 1808
|
||||
y(limit\).)630 1963 y Ft(-n)384 b Fu(The)38 b(maxim)m(um)h(n)m(um)m(b)s
|
||||
(er)e(of)i(op)s(en)f(\014le)h(descriptors)g(\(most)g(systems)g(do)1110
|
||||
1985 y(not)31 b(allo)m(w)g(this)g(v)-5 b(alue)31 b(to)g(b)s(e)e(set\).)
|
||||
630 2149 y Ft(-p)384 b Fu(The)30 b(pip)s(e)f(bu\013er)h(size.)630
|
||||
2312 y Ft(-q)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i(b)m
|
||||
(ytes)g(in)f(POSIX)f(message)j(queues.)630 2475 y Ft(-r)384
|
||||
2073 y(not)31 b(allo)m(w)g(this)g(v)-5 b(alue)31 b(to)g(b)s(e)e(set\).)
|
||||
630 2228 y Ft(-p)384 b Fu(The)30 b(pip)s(e)f(bu\013er)h(size.)630
|
||||
2384 y Ft(-q)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i(b)m
|
||||
(ytes)g(in)f(POSIX)f(message)j(queues.)630 2539 y Ft(-r)384
|
||||
b Fu(The)30 b(maxim)m(um)g(real-time)i(sc)m(heduling)f(priorit)m(y)-8
|
||||
b(.)630 2638 y Ft(-s)384 b Fu(The)30 b(maxim)m(um)g(stac)m(k)i(size.)
|
||||
630 2801 y Ft(-t)384 b Fu(The)30 b(maxim)m(um)g(amoun)m(t)h(of)f(cpu)g
|
||||
(time)h(in)f(seconds.)630 2964 y Ft(-u)384 b Fu(The)30
|
||||
b(.)630 2695 y Ft(-s)384 b Fu(The)30 b(maxim)m(um)g(stac)m(k)i(size.)
|
||||
630 2850 y Ft(-t)384 b Fu(The)30 b(maxim)m(um)g(amoun)m(t)h(of)f(cpu)g
|
||||
(time)h(in)f(seconds.)630 3005 y Ft(-u)384 b Fu(The)30
|
||||
b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i(pro)s(cesses)f(a)m(v)-5
|
||||
b(ailable)33 b(to)e(a)f(single)i(user.)630 3127 y Ft(-v)384
|
||||
b(ailable)33 b(to)e(a)f(single)i(user.)630 3161 y Ft(-v)384
|
||||
b Fu(The)41 b(maxim)m(um)h(amoun)m(t)g(of)h(virtual)f(memory)g(a)m(v)-5
|
||||
b(ailable)44 b(to)e(the)g(shell,)1110 3236 y(and,)30
|
||||
b(ailable)44 b(to)e(the)g(shell,)1110 3271 y(and,)30
|
||||
b(on)g(some)h(systems,)g(to)g(its)g(c)m(hildren.)630
|
||||
3399 y Ft(-x)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i
|
||||
(\014le)f(lo)s(c)m(ks.)630 3562 y Ft(-P)384 b Fu(The)30
|
||||
3426 y Ft(-x)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i
|
||||
(\014le)f(lo)s(c)m(ks.)630 3581 y Ft(-P)384 b Fu(The)30
|
||||
b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i(pseudoterminals.)630
|
||||
3726 y Ft(-T)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i
|
||||
(threads.)630 3889 y(If)36 b Fr(limit)k Fu(is)c(giv)m(en,)k(and)c(the)h
|
||||
3737 y Ft(-T)384 b Fu(The)30 b(maxim)m(um)g(n)m(um)m(b)s(er)f(of)i
|
||||
(threads.)630 3892 y(If)36 b Fr(limit)k Fu(is)c(giv)m(en,)k(and)c(the)h
|
||||
Ft(-a)f Fu(option)h(is)f(not)h(used,)h Fr(limit)h Fu(is)e(the)g(new)f
|
||||
(v)-5 b(alue)37 b(of)g(the)630 3998 y(sp)s(eci\014ed)c(resource.)51
|
||||
(v)-5 b(alue)37 b(of)g(the)630 4002 y(sp)s(eci\014ed)c(resource.)51
|
||||
b(The)34 b(sp)s(ecial)g Fr(limit)j Fu(v)-5 b(alues)34
|
||||
b Ft(hard)p Fu(,)g Ft(soft)p Fu(,)g(and)f Ft(unlimited)e
|
||||
Fu(stand)630 4108 y(for)h(the)g(curren)m(t)g(hard)f(limit,)i(the)g
|
||||
Fu(stand)630 4112 y(for)h(the)g(curren)m(t)g(hard)f(limit,)i(the)g
|
||||
(curren)m(t)f(soft)g(limit,)h(and)f(no)g(limit,)h(resp)s(ectiv)m(ely)-8
|
||||
b(.)48 b(A)630 4217 y(hard)37 b(limit)h(cannot)h(b)s(e)e(increased)h(b)
|
||||
b(.)48 b(A)630 4221 y(hard)37 b(limit)h(cannot)h(b)s(e)e(increased)h(b)
|
||||
m(y)f(a)h(non-ro)s(ot)g(user)f(once)i(it)f(is)g(set;)k(a)c(soft)g
|
||||
(limit)630 4327 y(ma)m(y)j(b)s(e)e(increased)i(up)e(to)h(the)h(v)-5
|
||||
(limit)630 4331 y(ma)m(y)j(b)s(e)e(increased)i(up)e(to)h(the)h(v)-5
|
||||
b(alue)40 b(of)g(the)h(hard)e(limit.)70 b(Otherwise,)43
|
||||
b(the)d(curren)m(t)630 4437 y(v)-5 b(alue)29 b(of)h(the)f(soft)g(limit)
|
||||
b(the)d(curren)m(t)630 4440 y(v)-5 b(alue)29 b(of)h(the)f(soft)g(limit)
|
||||
h(for)e(the)h(sp)s(eci\014ed)g(resource)g(is)g(prin)m(ted,)g(unless)f
|
||||
(the)h Ft(-H)f Fu(option)630 4546 y(is)h(supplied.)39
|
||||
(the)h Ft(-H)f Fu(option)630 4550 y(is)h(supplied.)39
|
||||
b(When)29 b(setting)h(new)f(limits,)h(if)f(neither)g
|
||||
Ft(-H)g Fu(nor)f Ft(-S)h Fu(is)g(supplied,)f(b)s(oth)h(the)630
|
||||
4656 y(hard)i(and)h(soft)h(limits)g(are)f(set.)48 b(If)31
|
||||
4660 y(hard)i(and)h(soft)h(limits)g(are)f(set.)48 b(If)31
|
||||
b(no)i(option)f(is)h(giv)m(en,)h(then)e Ft(-f)g Fu(is)g(assumed.)46
|
||||
b(V)-8 b(alues)630 4765 y(are)31 b(in)f(1024-b)m(yte)j(incremen)m(ts,)e
|
||||
b(V)-8 b(alues)630 4769 y(are)31 b(in)f(1024-b)m(yte)j(incremen)m(ts,)e
|
||||
(except)g(for)f Ft(-t)p Fu(,)g(whic)m(h)g(is)g(in)g(seconds;)h
|
||||
Ft(-p)p Fu(,)f(whic)m(h)g(is)g(in)630 4875 y(units)h(of)g(512-b)m(yte)j
|
||||
Ft(-p)p Fu(,)f(whic)m(h)g(is)g(in)630 4879 y(units)h(of)g(512-b)m(yte)j
|
||||
(blo)s(c)m(ks;)e Ft(-P)p Fu(,)f Ft(-T)p Fu(,)h Ft(-b)p
|
||||
Fu(,)f Ft(-k)p Fu(,)g Ft(-n)g Fu(and)f Ft(-u)p Fu(,)h(whic)m(h)h(are)f
|
||||
(unscaled)g(v)-5 b(alues;)630 4984 y(and,)31 b(when)f(in)g
|
||||
(unscaled)g(v)-5 b(alues;)630 4988 y(and,)31 b(when)f(in)g
|
||||
Fm(posix)g Fu(Mo)s(de)h(\(see)h(Section)g(6.11)g([Bash)g(POSIX)e(Mo)s
|
||||
(de],)h(page)h(98\),)h Ft(-c)630 5094 y Fu(and)d Ft(-f)p
|
||||
(de],)h(page)h(98\),)h Ft(-c)630 5098 y Fu(and)d Ft(-f)p
|
||||
Fu(,)g(whic)m(h)g(are)h(in)f(512-b)m(yte)i(incremen)m(ts.)630
|
||||
5230 y(The)i(return)g(status)h(is)f(zero)i(unless)e(an)g(in)m(v)-5
|
||||
b(alid)36 b(option)f(or)f(argumen)m(t)i(is)e(supplied,)h(or)630
|
||||
@@ -12884,111 +12892,117 @@ b(If)41 b(an)m(y)g(jobs)f(are)i(running,)g(this)f(causes)1110
|
||||
(command)f(\(see)h(Chapter)e(7)h([Job)g(Con)m(trol],)i(page)f(102\).)40
|
||||
b(The)1110 2436 y(shell)31 b(alw)m(a)m(ys)g(p)s(ostp)s(ones)f(exiting)h
|
||||
(if)g(an)m(y)f(jobs)g(are)h(stopp)s(ed.)630 2600 y Ft(checkwinsize)1110
|
||||
2710 y Fu(If)41 b(set,)k(Bash)c(c)m(hec)m(ks)i(the)f(windo)m(w)e(size)j
|
||||
(after)f(eac)m(h)g(command)f(and,)j(if)1110 2819 y(necessary)-8
|
||||
b(,)31 b(up)s(dates)f(the)g(v)-5 b(alues)31 b(of)g Ft(LINES)e
|
||||
Fu(and)g Ft(COLUMNS)p Fu(.)630 2984 y Ft(cmdhist)144
|
||||
2710 y Fu(If)23 b(set,)j(Bash)e(c)m(hec)m(ks)h(the)f(windo)m(w)f(size)h
|
||||
(after)h(eac)m(h)f(external)h(\(non-builtin\))1110 2819
|
||||
y(command)55 b(and,)60 b(if)55 b(necessary)-8 b(,)62
|
||||
b(up)s(dates)54 b(the)h(v)-5 b(alues)55 b(of)g Ft(LINES)f
|
||||
Fu(and)1110 2929 y Ft(COLUMNS)p Fu(.)630 3093 y Ft(cmdhist)144
|
||||
b Fu(If)33 b(set,)j(Bash)e(attempts)h(to)g(sa)m(v)m(e)g(all)g(lines)f
|
||||
(of)g(a)h(m)m(ultiple-line)g(command)1110 3093 y(in)c(the)g(same)g
|
||||
(of)g(a)h(m)m(ultiple-line)g(command)1110 3203 y(in)c(the)g(same)g
|
||||
(history)g(en)m(try)-8 b(.)42 b(This)30 b(allo)m(ws)i(easy)g
|
||||
(re-editing)g(of)f(m)m(ulti-line)1110 3203 y(commands.)630
|
||||
3367 y Ft(compat31)96 b Fu(If)27 b(set,)i(Bash)e(c)m(hanges)i(its)f(b)s
|
||||
(eha)m(vior)f(to)i(that)f(of)f(v)m(ersion)h(3.1)h(with)e(resp)s(ect)
|
||||
1110 3477 y(to)39 b(quoted)f(argumen)m(ts)g(to)h(the)f(conditional)h
|
||||
(command's)f(`)p Ft(=~)p Fu(')g(op)s(erator)1110 3587
|
||||
(re-editing)g(of)f(m)m(ulti-line)1110 3313 y(commands.)79
|
||||
b(This)43 b(option)g(is)h(enabled)f(b)m(y)g(default,)k(but)c(only)g
|
||||
(has)g(an)1110 3422 y(e\013ect)30 b(if)e(command)g(history)g(is)h
|
||||
(enabled)f(\(see)h(Section)g(9.1)h([Bash)e(History)1110
|
||||
3532 y(F)-8 b(acilities],)34 b(page)d(140\).)630 3696
|
||||
y Ft(compat31)96 b Fu(If)27 b(set,)i(Bash)e(c)m(hanges)i(its)f(b)s(eha)
|
||||
m(vior)f(to)i(that)f(of)f(v)m(ersion)h(3.1)h(with)e(resp)s(ect)1110
|
||||
3806 y(to)39 b(quoted)f(argumen)m(ts)g(to)h(the)f(conditional)h
|
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||||
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||||
1110 5230 y(to)34 b(lo)s(cale-sp)s(eci\014c)h(string)e(comparison)g
|
||||
(when)f(using)h(the)g Ft([[)g Fu(conditional)1110 5340
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||||
y(command's)28 b(`)p Ft(<)p Fu(')h(and)f(`)p Ft(>)p Fu(')h(op)s
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||||
(erators)f(\(see)i(description)e(of)h Ft(compat31)p Fu(\))e(and)1110
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|
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408 y(quoted)46 b(parameter)h(expansion)f(as)g(a)h(sp)s(ecial)f(c)m
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|
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b(e\013ect)i(of)e(in)m(terrupting)f(a)i(command)e(list.)64
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b(in)m(terrupt)f(the)g(list)h(as)g(if)f(the)h(shell)f(receiv)m(ed)i
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|
||||
b(con)m(tin)m(ue)g(with)f(the)h(next)g(command)f(in)g(the)g(list.)630
|
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669 y Ft(compat41)96 b Fu(If)25 b(set,)j(Bash,)e(when)f(in)g
|
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|
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(double-)1110 778 y(quoted)46 b(parameter)h(expansion)f(as)g(a)h(sp)s
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(ecial)f(c)m(haracter.)90 b(The)45 b(single)1110 888
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y(quotes)34 b(m)m(ust)g(matc)m(h)h(\(an)f(ev)m(en)h(n)m(um)m(b)s(er\))e
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|
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|
||||
y Fm(posix)f Fu(mo)s(de)g(through)g(v)m(ersion)h(4.1.)69
|
||||
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|
||||
847 y(mains)30 b(as)h(in)f(previous)g(v)m(ersions.)630
|
||||
1050 y Ft(compat42)96 b Fu(If)29 b(set,)i(Bash)f(do)s(es)f(not)h(pro)s
|
||||
1217 y(mains)30 b(as)h(in)f(previous)g(v)m(ersions.)630
|
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|
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|
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1160 y(substitution)g(w)m(ord)g(expansion)g(using)g(quote)h(remo)m(v)-5
|
||||
b(al.)630 1363 y Ft(compat43)96 b Fu(If)24 b(set,)j(Bash)e(do)s(es)g
|
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1477 y(substitution)g(w)m(ord)g(expansion)g(using)g(quote)h(remo)m(v)-5
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|
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(made)1110 1737 y(to)43 b(use)g(a)g(quoted)f(comp)s(ound)f(arra)m(y)i
|
||||
(assignmen)m(t)h(as)f(an)f(argumen)m(t)h(to)1110 1847
|
||||
y Ft(declare)p Fu(,)31 b(mak)m(es)i(w)m(ord)f(expansion)g(errors)g
|
||||
(non-fatal)i(errors)d(that)i(cause)1110 1692 y(the)28
|
||||
(non-fatal)i(errors)d(that)i(cause)1110 1956 y(the)28
|
||||
b(curren)m(t)h(command)f(to)h(fail)g(\(the)f(default)h(b)s(eha)m(vior)f
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(is)h(to)g(mak)m(e)g(them)1110 2066 y(fatal)42 b(errors)e(that)i(cause)
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f(the)h(shell)f(to)g(exit\),)k(and)c(do)s(es)f(not)h(reset)h(the)1110
|
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|
||||
2176 y(lo)s(op)34 b(state)h(when)f(a)g(shell)g(function)g(is)g
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(executed)h(\(this)f(allo)m(ws)h Ft(break)e Fu(or)1110
|
||||
2021 y Ft(continue)25 b Fu(in)j(a)g(shell)g(function)f(to)i(a\013ect)g
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(lo)s(ops)f(in)f(the)h(caller's)h(con)m(text\).)630 2225
|
||||
y Ft(complete_fullquote)1110 2334 y Fu(If)i(set,)g(Bash)h(quotes)f(all)
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2285 y Ft(continue)25 b Fu(in)j(a)g(shell)g(function)f(to)i(a\013ect)g
|
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(lo)s(ops)f(in)f(the)h(caller's)h(con)m(text\).)630 2436
|
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y Ft(complete_fullquote)1110 2545 y Fu(If)i(set,)g(Bash)h(quotes)f(all)
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h(shell)f(metac)m(haracters)i(in)e(\014lenames)g(and)g(direc-)1110
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2655 y(tory)g(names)f(when)g(p)s(erforming)f(completion.)43
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||||
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||||
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||||
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||||
3203 y(rectories)28 b(will)g(not)f(b)s(e)f(quoted;)j(ho)m(w)m(ev)m(er,)
|
||||
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||||
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||||
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||||
3211 y(is)39 b(using)f(bac)m(kslashes)i(to)g(quote)g(completed)f
|
||||
(\014lenames.)67 b(This)38 b(v)-5 b(ariable)1110 3320
|
||||
3422 y(is)39 b(using)f(bac)m(kslashes)i(to)g(quote)g(completed)f
|
||||
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||||
y(is)41 b(set)g(b)m(y)g(default,)j(whic)m(h)c(is)h(the)g(default)g
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
(completion.)67 b(This)38 b(c)m(hanges)i(the)1110 3962
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||||
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|
||||
(completion.)67 b(This)38 b(c)m(hanges)i(the)1110 4121
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||||
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|
||||
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||||
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|
||||
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|
||||
4275 y Ft(dirspell)96 b Fu(If)26 b(set,)i(Bash)f(attempts)g(sp)s
|
||||
4381 y Ft(dirspell)96 b Fu(If)26 b(set,)i(Bash)f(attempts)g(sp)s
|
||||
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|
||||
4385 y(w)m(ord)36 b(completion)h(if)f(the)g(directory)g(name)g
|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
b(The)33 b(\014lenames)i(`)p Ft(.)p Fu(')f(and)g(`)p
|
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|
||||
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|
||||
y(matc)m(hed)31 b(explicitly)-8 b(,)33 b(ev)m(en)e(if)f
|
||||
Ft(dotglob)f Fu(is)h(set.)630 5121 y Ft(execfail)96 b
|
||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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||||
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||||
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(ed,)k(the)c(message)h Ft("The)k(mail)h(in)f Fj(mail-)1110
|
||||
902 y(file)g Ft(has)h(been)f(read")g Fu(is)h(displa)m(y)m(ed.)630
|
||||
1066 y Ft(no_empty_cmd_completion)1110 1176 y Fu(If)g(set,)g(and)g
|
||||
1395 y(file)g Ft(has)h(been)f(read")g Fu(is)h(displa)m(y)m(ed.)630
|
||||
1559 y Ft(no_empty_cmd_completion)1110 1669 y Fu(If)g(set,)g(and)g
|
||||
(Readline)g(is)h(b)s(eing)e(used,)h(Bash)g(will)g(not)g(attempt)i(to)e
|
||||
(searc)m(h)1110 1285 y(the)25 b Ft(PATH)f Fu(for)h(p)s(ossible)f
|
||||
(searc)m(h)1110 1778 y(the)25 b Ft(PATH)f Fu(for)h(p)s(ossible)f
|
||||
(completions)j(when)d(completion)i(is)f(attempted)h(on)1110
|
||||
1395 y(an)k(empt)m(y)h(line.)630 1559 y Ft(nocaseglob)1110
|
||||
1669 y Fu(If)38 b(set,)k(Bash)d(matc)m(hes)g(\014lenames)g(in)f(a)h
|
||||
(case-insensitiv)m(e)j(fashion)c(when)1110 1778 y(p)s(erforming)29
|
||||
b(\014lename)i(expansion.)630 1943 y Ft(nocasematch)1110
|
||||
2052 y Fu(If)42 b(set,)k(Bash)d(matc)m(hes)g(patterns)g(in)f(a)h
|
||||
(case-insensitiv)m(e)i(fashion)d(when)1110 2162 y(p)s(erforming)31
|
||||
1888 y(an)k(empt)m(y)h(line.)630 2052 y Ft(nocaseglob)1110
|
||||
2162 y Fu(If)38 b(set,)k(Bash)d(matc)m(hes)g(\014lenames)g(in)f(a)h
|
||||
(case-insensitiv)m(e)j(fashion)c(when)1110 2271 y(p)s(erforming)29
|
||||
b(\014lename)i(expansion.)630 2436 y Ft(nocasematch)1110
|
||||
2545 y Fu(If)42 b(set,)k(Bash)d(matc)m(hes)g(patterns)g(in)f(a)h
|
||||
(case-insensitiv)m(e)i(fashion)d(when)1110 2655 y(p)s(erforming)31
|
||||
b(matc)m(hing)i(while)f(executing)i Ft(case)d Fu(or)h
|
||||
Ft([[)g Fu(conditional)h(com-)1110 2271 y(mands,)d(when)g(p)s
|
||||
Ft([[)g Fu(conditional)h(com-)1110 2765 y(mands,)d(when)g(p)s
|
||||
(erforming)g(pattern)h(substitution)g(w)m(ord)g(expansions,)g(or)1110
|
||||
2381 y(when)g(\014ltering)i(p)s(ossible)f(completions)h(as)g(part)f(of)
|
||||
h(programmable)f(com-)1110 2491 y(pletion.)630 2655 y
|
||||
2874 y(when)g(\014ltering)i(p)s(ossible)f(completions)h(as)g(part)f(of)
|
||||
h(programmable)f(com-)1110 2984 y(pletion.)630 3148 y
|
||||
Ft(nullglob)96 b Fu(If)23 b(set,)j(Bash)e(allo)m(ws)g(\014lename)g
|
||||
(patterns)g(whic)m(h)f(matc)m(h)h(no)g(\014les)f(to)i(expand)1110
|
||||
2765 y(to)31 b(a)g(n)m(ull)f(string,)h(rather)f(than)g(themselv)m(es.)
|
||||
630 2929 y Ft(progcomp)96 b Fu(If)25 b(set,)i(the)f(programmable)g
|
||||
3258 y(to)31 b(a)g(n)m(ull)f(string,)h(rather)f(than)g(themselv)m(es.)
|
||||
630 3422 y Ft(progcomp)96 b Fu(If)25 b(set,)i(the)f(programmable)g
|
||||
(completion)g(facilities)i(\(see)f(Section)f(8.6)h([Pro-)1110
|
||||
3039 y(grammable)45 b(Completion],)k(page)c(131\))h(are)f(enabled.)82
|
||||
b(This)44 b(option)h(is)1110 3148 y(enabled)30 b(b)m(y)h(default.)630
|
||||
3313 y Ft(promptvars)1110 3422 y Fu(If)50 b(set,)56 b(prompt)49
|
||||
3532 y(grammable)45 b(Completion],)k(page)c(131\))h(are)f(enabled.)82
|
||||
b(This)44 b(option)h(is)1110 3641 y(enabled)30 b(b)m(y)h(default.)630
|
||||
3806 y Ft(promptvars)1110 3915 y Fu(If)50 b(set,)56 b(prompt)49
|
||||
b(strings)h(undergo)g(parameter)h(expansion,)k(command)1110
|
||||
3532 y(substitution,)35 b(arithmetic)g(expansion,)g(and)e(quote)i(remo)
|
||||
m(v)-5 b(al)35 b(after)f(b)s(eing)1110 3641 y(expanded)53
|
||||
4025 y(substitution,)35 b(arithmetic)g(expansion,)g(and)e(quote)i(remo)
|
||||
m(v)-5 b(al)35 b(after)f(b)s(eing)1110 4134 y(expanded)53
|
||||
b(as)h(describ)s(ed)e(b)s(elo)m(w)i(\(see)h(Section)f(6.9)h([Con)m
|
||||
(trolling)g(the)1110 3751 y(Prompt],)30 b(page)h(96\).)42
|
||||
(trolling)g(the)1110 4244 y(Prompt],)30 b(page)h(96\).)42
|
||||
b(This)30 b(option)h(is)f(enabled)h(b)m(y)f(default.)630
|
||||
3915 y Ft(restricted_shell)1110 4025 y Fu(The)40 b(shell)h(sets)g(this)
|
||||
4408 y Ft(restricted_shell)1110 4518 y Fu(The)40 b(shell)h(sets)g(this)
|
||||
g(option)g(if)g(it)h(is)e(started)i(in)e(restricted)i(mo)s(de)e(\(see)
|
||||
1110 4134 y(Section)c(6.10)g([The)f(Restricted)g(Shell],)i(page)e
|
||||
1110 4628 y(Section)c(6.10)g([The)f(Restricted)g(Shell],)i(page)e
|
||||
(97\).)56 b(The)34 b(v)-5 b(alue)35 b(ma)m(y)h(not)1110
|
||||
4244 y(b)s(e)c(c)m(hanged.)49 b(This)32 b(is)h(not)h(reset)f(when)f
|
||||
(the)h(startup)g(\014les)f(are)i(executed,)1110 4354
|
||||
4737 y(b)s(e)c(c)m(hanged.)49 b(This)32 b(is)h(not)h(reset)f(when)f
|
||||
(the)h(startup)g(\014les)f(are)i(executed,)1110 4847
|
||||
y(allo)m(wing)k(the)e(startup)f(\014les)h(to)g(disco)m(v)m(er)h
|
||||
(whether)f(or)f(not)i(a)f(shell)g(is)g(re-)1110 4463
|
||||
y(stricted.)630 4628 y Ft(shift_verbose)1110 4737 y Fu(If)g(this)g(is)g
|
||||
(whether)f(or)f(not)i(a)f(shell)g(is)g(re-)1110 4956
|
||||
y(stricted.)630 5121 y Ft(shift_verbose)1110 5230 y Fu(If)g(this)g(is)g
|
||||
(set,)j(the)d Ft(shift)f Fu(builtin)h(prin)m(ts)f(an)h(error)g(message)
|
||||
i(when)d(the)1110 4847 y(shift)30 b(coun)m(t)h(exceeds)g(the)g(n)m(um)m
|
||||
(b)s(er)e(of)h(p)s(ositional)i(parameters.)630 5011 y
|
||||
Ft(sourcepath)1110 5121 y Fu(If)22 b(set,)j(the)e Ft(source)e
|
||||
Fu(builtin)h(uses)g(the)h(v)-5 b(alue)23 b(of)g Ft(PATH)e
|
||||
Fu(to)j(\014nd)d(the)h(directory)1110 5230 y(con)m(taining)29
|
||||
b(the)e(\014le)h(supplied)e(as)h(an)g(argumen)m(t.)40
|
||||
b(This)27 b(option)h(is)f(enabled)1110 5340 y(b)m(y)j(default.)p
|
||||
eop end
|
||||
i(when)d(the)1110 5340 y(shift)30 b(coun)m(t)h(exceeds)g(the)g(n)m(um)m
|
||||
(b)s(er)e(of)h(p)s(ositional)i(parameters.)p eop end
|
||||
%%Page: 71 77
|
||||
TeXDict begin 71 76 bop 150 -116 a Fu(Chapter)30 b(4:)41
|
||||
b(Shell)30 b(Builtin)h(Commands)2069 b(71)630 299 y Ft(xpg_echo)96
|
||||
b Fu(If)31 b(set,)h(the)g Ft(echo)e Fu(builtin)h(expands)f(bac)m
|
||||
(kslash-escap)s(e)j(sequences)f(b)m(y)f(de-)1110 408
|
||||
y(fault.)630 568 y(The)c(return)f(status)i(when)f(listing)h(options)g
|
||||
(is)f(zero)i(if)e(all)i Fr(optnames)i Fu(are)d(enabled,)g(non-)630
|
||||
677 y(zero)40 b(otherwise.)66 b(When)39 b(setting)h(or)f(unsetting)g
|
||||
(options,)i(the)e(return)f(status)h(is)g(zero)630 787
|
||||
y(unless)30 b(an)g Fr(optname)36 b Fu(is)30 b(not)h(a)g(v)-5
|
||||
b(alid)30 b(shell)h(option.)150 1028 y Fs(4.4)68 b(Sp)t(ecial)45
|
||||
b(Builtins)150 1187 y Fu(F)-8 b(or)35 b(historical)h(reasons,)g(the)e
|
||||
Fm(posix)g Fu(standard)f(has)i(classi\014ed)f(sev)m(eral)i(builtin)e
|
||||
(commands)g(as)h Fl(sp)-5 b(e-)150 1297 y(cial)p Fu(.)47
|
||||
b(When)33 b(Bash)f(is)h(executing)g(in)f Fm(posix)g Fu(mo)s(de,)h(the)g
|
||||
(sp)s(ecial)g(builtins)e(di\013er)i(from)f(other)g(builtin)150
|
||||
1406 y(commands)e(in)g(three)h(resp)s(ects:)199 1541
|
||||
b(Shell)30 b(Builtin)h(Commands)2069 b(71)630 299 y Ft(sourcepath)1110
|
||||
408 y Fu(If)22 b(set,)j(the)e Ft(source)e Fu(builtin)h(uses)g(the)h(v)
|
||||
-5 b(alue)23 b(of)g Ft(PATH)e Fu(to)j(\014nd)d(the)h(directory)1110
|
||||
518 y(con)m(taining)29 b(the)e(\014le)h(supplied)e(as)h(an)g(argumen)m
|
||||
(t.)40 b(This)27 b(option)h(is)f(enabled)1110 628 y(b)m(y)j(default.)
|
||||
630 787 y Ft(xpg_echo)96 b Fu(If)31 b(set,)h(the)g Ft(echo)e
|
||||
Fu(builtin)h(expands)f(bac)m(kslash-escap)s(e)j(sequences)f(b)m(y)f
|
||||
(de-)1110 897 y(fault.)630 1056 y(The)c(return)f(status)i(when)f
|
||||
(listing)h(options)g(is)f(zero)i(if)e(all)i Fr(optnames)i
|
||||
Fu(are)d(enabled,)g(non-)630 1166 y(zero)40 b(otherwise.)66
|
||||
b(When)39 b(setting)h(or)f(unsetting)g(options,)i(the)e(return)f
|
||||
(status)h(is)g(zero)630 1275 y(unless)30 b(an)g Fr(optname)36
|
||||
b Fu(is)30 b(not)h(a)g(v)-5 b(alid)30 b(shell)h(option.)150
|
||||
1516 y Fs(4.4)68 b(Sp)t(ecial)45 b(Builtins)150 1675
|
||||
y Fu(F)-8 b(or)35 b(historical)h(reasons,)g(the)e Fm(posix)g
|
||||
Fu(standard)f(has)i(classi\014ed)f(sev)m(eral)i(builtin)e(commands)g
|
||||
(as)h Fl(sp)-5 b(e-)150 1785 y(cial)p Fu(.)47 b(When)33
|
||||
b(Bash)f(is)h(executing)g(in)f Fm(posix)g Fu(mo)s(de,)h(the)g(sp)s
|
||||
(ecial)g(builtins)e(di\013er)i(from)f(other)g(builtin)150
|
||||
1895 y(commands)e(in)g(three)h(resp)s(ects:)199 2029
|
||||
y(1.)61 b(Sp)s(ecial)31 b(builtins)e(are)i(found)e(b)s(efore)h(shell)h
|
||||
(functions)f(during)f(command)h(lo)s(okup.)199 1675 y(2.)61
|
||||
(functions)f(during)f(command)h(lo)s(okup.)199 2164 y(2.)61
|
||||
b(If)30 b(a)h(sp)s(ecial)g(builtin)f(returns)f(an)h(error)g(status,)h
|
||||
(a)g(non-in)m(teractiv)m(e)i(shell)d(exits.)199 1810
|
||||
(a)g(non-in)m(teractiv)m(e)i(shell)d(exits.)199 2298
|
||||
y(3.)61 b(Assignmen)m(t)30 b(statemen)m(ts)h(preceding)f(the)f(command)
|
||||
g(sta)m(y)i(in)e(e\013ect)i(in)e(the)h(shell)f(en)m(vironmen)m(t)330
|
||||
1919 y(after)i(the)f(command)h(completes.)275 2079 y(When)36
|
||||
2408 y(after)i(the)f(command)h(completes.)275 2567 y(When)36
|
||||
b(Bash)g(is)h(not)f(executing)i(in)e Fm(posix)f Fu(mo)s(de,)j(these)f
|
||||
(builtins)f(b)s(eha)m(v)m(e)h(no)f(di\013eren)m(tly)h(than)150
|
||||
2188 y(the)31 b(rest)f(of)h(the)f(Bash)h(builtin)e(commands.)41
|
||||
2677 y(the)31 b(rest)f(of)h(the)f(Bash)h(builtin)e(commands.)41
|
||||
b(The)30 b(Bash)g Fm(posix)g Fu(mo)s(de)g(is)g(describ)s(ed)f(in)h
|
||||
(Section)h(6.11)150 2298 y([Bash)g(POSIX)e(Mo)s(de],)i(page)g(98.)275
|
||||
2433 y(These)f(are)g(the)h Fm(posix)f Fu(sp)s(ecial)h(builtins:)390
|
||||
2567 y Ft(break)46 b(:)i(.)f(continue)f(eval)g(exec)h(exit)g(export)f
|
||||
(readonly)f(return)h(set)390 2677 y(shift)g(trap)h(unset)p
|
||||
(Section)h(6.11)150 2786 y([Bash)g(POSIX)e(Mo)s(de],)i(page)g(98.)275
|
||||
2921 y(These)f(are)g(the)h Fm(posix)f Fu(sp)s(ecial)h(builtins:)390
|
||||
3055 y Ft(break)46 b(:)i(.)f(continue)f(eval)g(exec)h(exit)g(export)f
|
||||
(readonly)f(return)h(set)390 3165 y(shift)g(trap)h(unset)p
|
||||
eop end
|
||||
%%Page: 72 78
|
||||
TeXDict begin 72 77 bop 3659 -116 a Fu(72)150 299 y Fp(5)80
|
||||
@@ -17773,14 +17792,14 @@ Fu(pro)m(vide)i(is)h(to)f(use)g(a)h(shell)f(function)g(and)g(bind)e(it)
|
||||
j(to)g(a)g(particular)150 1151 y(command)h(using)g Ft(complete)e(-F)p
|
||||
Fu(.)275 1294 y(The)j(follo)m(wing)j(function)e(pro)m(vides)g
|
||||
(completions)i(for)e(the)g Ft(cd)g Fu(builtin.)46 b(It)32
|
||||
b(is)h(a)f(reasonably)h(go)s(o)s(d)150 1403 y(example)e(of)f(what)g
|
||||
(shell)g(functions)g(m)m(ust)f(do)h(when)f(used)h(for)f(completion.)42
|
||||
b(This)29 b(function)h(uses)g(the)150 1513 y(w)m(ord)38
|
||||
b(passsed)g(as)h Ft($2)g Fu(to)g(determine)g(the)g(directory)g(name)g
|
||||
(to)g(complete.)67 b(Y)-8 b(ou)40 b(can)f(also)g(use)g(the)150
|
||||
1623 y Ft(COMP_WORDS)28 b Fu(arra)m(y)i(v)-5 b(ariable;)32
|
||||
b(the)e(curren)m(t)h(w)m(ord)f(is)g(indexed)g(b)m(y)g(the)h
|
||||
Ft(COMP_CWORD)c Fu(v)-5 b(ariable.)275 1766 y(The)42
|
||||
b(is)h(a)f(reasonably)h(go)s(o)s(d)150 1403 y(example)41
|
||||
b(of)g(what)f(shell)h(functions)f(m)m(ust)g(do)h(when)e(used)h(for)g
|
||||
(completion.)73 b(This)39 b(function)h(uses)150 1513
|
||||
y(the)32 b(w)m(ord)f(passed)g(as)h Ft($2)f Fu(to)h(determine)g(the)f
|
||||
(directory)h(name)g(to)g(complete.)46 b(Y)-8 b(ou)32
|
||||
b(can)g(also)g(use)g(the)150 1623 y Ft(COMP_WORDS)c Fu(arra)m(y)i(v)-5
|
||||
b(ariable;)32 b(the)e(curren)m(t)h(w)m(ord)f(is)g(indexed)g(b)m(y)g
|
||||
(the)h Ft(COMP_CWORD)c Fu(v)-5 b(ariable.)275 1766 y(The)42
|
||||
b(function)h(relies)h(on)e(the)i Ft(complete)c Fu(and)j
|
||||
Ft(compgen)e Fu(builtins)h(to)i(do)f(m)m(uc)m(h)g(of)g(the)h(w)m(ork,)
|
||||
150 1875 y(adding)25 b(only)h(the)g(things)g(that)g(the)g(Bash)g
|
||||
@@ -20067,7 +20086,7 @@ g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f
|
||||
g(:)g(:)g(:)26 b Fb(57)2025 4339 y Fe(readarray)15 b
|
||||
Fc(:)g(:)f(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g
|
||||
(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)
|
||||
g(:)g(:)30 b Fb(58)2025 4427 y Fe(readonly)18 b Fc(:)d(:)e(:)g(:)g(:)g
|
||||
g(:)g(:)30 b Fb(59)2025 4427 y Fe(readonly)18 b Fc(:)d(:)e(:)g(:)g(:)g
|
||||
(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)
|
||||
h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)33
|
||||
b Fb(46)2025 4515 y Fe(return)6 b Fc(:)14 b(:)f(:)h(:)f(:)g(:)g(:)g(:)g
|
||||
|
||||
+5
-4
@@ -1776,10 +1776,11 @@ original word are removed unless they have been quoted themselves
|
||||
(@var{quote removal}).
|
||||
|
||||
Only brace expansion, word splitting, and filename expansion
|
||||
can change the number of words of the expansion; other expansions
|
||||
can increase the number of words of the expansion; other expansions
|
||||
expand a single word to a single word.
|
||||
The only exceptions to this are the expansions of
|
||||
@code{"$@@"} (@pxref{Special Parameters}) and @code{"$@{@var{name}[@@]@}"}
|
||||
@code{"$@@"} and @code{$*} (@pxref{Special Parameters}), and
|
||||
@code{"$@{@var{name}[@@]@}"} and @code{$@{@var{name}[*]@}}
|
||||
(@pxref{Arrays}).
|
||||
|
||||
After all expansions, @code{quote removal} (@pxref{Quote Removal})
|
||||
@@ -5128,8 +5129,8 @@ intervening command (@pxref{Job Control}).
|
||||
The shell always postpones exiting if any jobs are stopped.
|
||||
|
||||
@item checkwinsize
|
||||
If set, Bash checks the window size after each command
|
||||
and, if necessary, updates the values of
|
||||
If set, Bash checks the window size after each external (non-builtin)
|
||||
command and, if necessary, updates the values of
|
||||
@env{LINES} and @env{COLUMNS}.
|
||||
|
||||
@item cmdhist
|
||||
|
||||
+288
-276
@@ -597,7 +597,7 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
plete, the edited commands are echoed and executed.
|
||||
|
||||
In the second form, _c_o_m_m_a_n_d is re-executed after each instance
|
||||
of _p_a_t is replaced by _r_e_p. _C_o_m_m_a_n_d is intepreted the same as
|
||||
of _p_a_t is replaced by _r_e_p. _C_o_m_m_a_n_d is interpreted the same as
|
||||
_f_i_r_s_t above. A useful alias to use with this is ``r="fc -s"'',
|
||||
so that typing ``r cc'' runs the last command beginning with
|
||||
``cc'' and typing ``r'' re-executes the last command.
|
||||
@@ -816,7 +816,9 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
plied. The variable MMAAPPFFIILLEE is the default _a_r_r_a_y. Options, if
|
||||
supplied, have the following meanings:
|
||||
--dd The first character of _d_e_l_i_m is used to terminate each
|
||||
input line, rather than newline.
|
||||
input line, rather than newline. If _d_e_l_i_m is the empty
|
||||
string, mmaappffiillee will terminate a line when it reads a NUL
|
||||
character.
|
||||
--nn Copy at most _c_o_u_n_t lines. If _c_o_u_n_t is 0, all lines are
|
||||
copied.
|
||||
--OO Begin assigning to _a_r_r_a_y at index _o_r_i_g_i_n. The default
|
||||
@@ -964,27 +966,30 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
ignored.
|
||||
--dd _d_e_l_i_m
|
||||
The first character of _d_e_l_i_m is used to terminate the
|
||||
input line, rather than newline.
|
||||
input line, rather than newline. If _d_e_l_i_m is the empty
|
||||
string, rreeaadd will terminate a line when it reads a NUL
|
||||
character.
|
||||
--ee If the standard input is coming from a terminal, rreeaaddlliinnee
|
||||
(see RREEAADDLLIINNEE above) is used to obtain the line. Read-
|
||||
line uses the current (or default, if line editing was
|
||||
not previously active) editing settings.
|
||||
not previously active) editing settings, but uses Read-
|
||||
line's default filename completion.
|
||||
--ii _t_e_x_t
|
||||
If rreeaaddlliinnee is being used to read the line, _t_e_x_t is
|
||||
If rreeaaddlliinnee is being used to read the line, _t_e_x_t is
|
||||
placed into the editing buffer before editing begins.
|
||||
--nn _n_c_h_a_r_s
|
||||
rreeaadd returns after reading _n_c_h_a_r_s characters rather than
|
||||
rreeaadd returns after reading _n_c_h_a_r_s characters rather than
|
||||
waiting for a complete line of input, but honors a delim-
|
||||
iter if fewer than _n_c_h_a_r_s characters are read before the
|
||||
iter if fewer than _n_c_h_a_r_s characters are read before the
|
||||
delimiter.
|
||||
--NN _n_c_h_a_r_s
|
||||
rreeaadd returns after reading exactly _n_c_h_a_r_s characters
|
||||
rather than waiting for a complete line of input, unless
|
||||
EOF is encountered or rreeaadd times out. Delimiter charac-
|
||||
ters encountered in the input are not treated specially
|
||||
and do not cause rreeaadd to return until _n_c_h_a_r_s characters
|
||||
are read. The result is not split on the characters in
|
||||
IIFFSS; the intent is that the variable is assigned exactly
|
||||
rreeaadd returns after reading exactly _n_c_h_a_r_s characters
|
||||
rather than waiting for a complete line of input, unless
|
||||
EOF is encountered or rreeaadd times out. Delimiter charac-
|
||||
ters encountered in the input are not treated specially
|
||||
and do not cause rreeaadd to return until _n_c_h_a_r_s characters
|
||||
are read. The result is not split on the characters in
|
||||
IIFFSS; the intent is that the variable is assigned exactly
|
||||
the characters read (with the exception of backslash; see
|
||||
the --rr option below).
|
||||
--pp _p_r_o_m_p_t
|
||||
@@ -992,131 +997,131 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
line, before attempting to read any input. The prompt is
|
||||
displayed only if input is coming from a terminal.
|
||||
--rr Backslash does not act as an escape character. The back-
|
||||
slash is considered to be part of the line. In particu-
|
||||
lar, a backslash-newline pair may not be used as a line
|
||||
slash is considered to be part of the line. In particu-
|
||||
lar, a backslash-newline pair may not be used as a line
|
||||
continuation.
|
||||
--ss Silent mode. If input is coming from a terminal, charac-
|
||||
ters are not echoed.
|
||||
--tt _t_i_m_e_o_u_t
|
||||
Cause rreeaadd to time out and return failure if a complete
|
||||
line of input (or a specified number of characters) is
|
||||
not read within _t_i_m_e_o_u_t seconds. _t_i_m_e_o_u_t may be a deci-
|
||||
mal number with a fractional portion following the deci-
|
||||
mal point. This option is only effective if rreeaadd is
|
||||
reading input from a terminal, pipe, or other special
|
||||
file; it has no effect when reading from regular files.
|
||||
Cause rreeaadd to time out and return failure if a complete
|
||||
line of input (or a specified number of characters) is
|
||||
not read within _t_i_m_e_o_u_t seconds. _t_i_m_e_o_u_t may be a deci-
|
||||
mal number with a fractional portion following the deci-
|
||||
mal point. This option is only effective if rreeaadd is
|
||||
reading input from a terminal, pipe, or other special
|
||||
file; it has no effect when reading from regular files.
|
||||
If rreeaadd times out, rreeaadd saves any partial input read into
|
||||
the specified variable _n_a_m_e. If _t_i_m_e_o_u_t is 0, rreeaadd
|
||||
returns immediately, without trying to read any data.
|
||||
The exit status is 0 if input is available on the speci-
|
||||
fied file descriptor, non-zero otherwise. The exit sta-
|
||||
the specified variable _n_a_m_e. If _t_i_m_e_o_u_t is 0, rreeaadd
|
||||
returns immediately, without trying to read any data.
|
||||
The exit status is 0 if input is available on the speci-
|
||||
fied file descriptor, non-zero otherwise. The exit sta-
|
||||
tus is greater than 128 if the timeout is exceeded.
|
||||
--uu _f_d Read input from file descriptor _f_d.
|
||||
|
||||
If no _n_a_m_e_s are supplied, the line read is assigned to the vari-
|
||||
able RREEPPLLYY. The exit status is zero, unless end-of-file is
|
||||
able RREEPPLLYY. The exit status is zero, unless end-of-file is
|
||||
encountered, rreeaadd times out (in which case the status is greater
|
||||
than 128), a variable assignment error (such as assigning to a
|
||||
than 128), a variable assignment error (such as assigning to a
|
||||
readonly variable) occurs, or an invalid file descriptor is sup-
|
||||
plied as the argument to --uu.
|
||||
|
||||
rreeaaddoonnllyy [--aaAAff] [--pp] [_n_a_m_e[=_w_o_r_d] ...]
|
||||
The given _n_a_m_e_s are marked readonly; the values of these _n_a_m_e_s
|
||||
may not be changed by subsequent assignment. If the --ff option
|
||||
is supplied, the functions corresponding to the _n_a_m_e_s are so
|
||||
marked. The --aa option restricts the variables to indexed
|
||||
arrays; the --AA option restricts the variables to associative
|
||||
arrays. If both options are supplied, --AA takes precedence. If
|
||||
no _n_a_m_e arguments are given, or if the --pp option is supplied, a
|
||||
The given _n_a_m_e_s are marked readonly; the values of these _n_a_m_e_s
|
||||
may not be changed by subsequent assignment. If the --ff option
|
||||
is supplied, the functions corresponding to the _n_a_m_e_s are so
|
||||
marked. The --aa option restricts the variables to indexed
|
||||
arrays; the --AA option restricts the variables to associative
|
||||
arrays. If both options are supplied, --AA takes precedence. If
|
||||
no _n_a_m_e arguments are given, or if the --pp option is supplied, a
|
||||
list of all readonly names is printed. The other options may be
|
||||
used to restrict the output to a subset of the set of readonly
|
||||
names. The --pp option causes output to be displayed in a format
|
||||
that may be reused as input. If a variable name is followed by
|
||||
=_w_o_r_d, the value of the variable is set to _w_o_r_d. The return
|
||||
status is 0 unless an invalid option is encountered, one of the
|
||||
used to restrict the output to a subset of the set of readonly
|
||||
names. The --pp option causes output to be displayed in a format
|
||||
that may be reused as input. If a variable name is followed by
|
||||
=_w_o_r_d, the value of the variable is set to _w_o_r_d. The return
|
||||
status is 0 unless an invalid option is encountered, one of the
|
||||
_n_a_m_e_s is not a valid shell variable name, or --ff is supplied with
|
||||
a _n_a_m_e that is not a function.
|
||||
|
||||
rreettuurrnn [_n]
|
||||
Causes a function to stop executing and return the value speci-
|
||||
fied by _n to its caller. If _n is omitted, the return status is
|
||||
that of the last command executed in the function body. If
|
||||
rreettuurrnn is executed by a trap handler, the last command used to
|
||||
determine the status is the last command executed before the
|
||||
trap handler. if rreettuurrnn is executed during a DDEEBBUUGG trap, the
|
||||
last command used to determine the status is the last command
|
||||
executed by the trap handler before rreettuurrnn was invoked. If
|
||||
rreettuurrnn is used outside a function, but during execution of a
|
||||
script by the .. (ssoouurrccee) command, it causes the shell to stop
|
||||
executing that script and return either _n or the exit status of
|
||||
the last command executed within the script as the exit status
|
||||
of the script. If _n is supplied, the return value is its least
|
||||
significant 8 bits. The return status is non-zero if rreettuurrnn is
|
||||
supplied a non-numeric argument, or is used outside a function
|
||||
and not during execution of a script by .. or ssoouurrccee. Any com-
|
||||
mand associated with the RREETTUURRNN trap is executed before execu-
|
||||
Causes a function to stop executing and return the value speci-
|
||||
fied by _n to its caller. If _n is omitted, the return status is
|
||||
that of the last command executed in the function body. If
|
||||
rreettuurrnn is executed by a trap handler, the last command used to
|
||||
determine the status is the last command executed before the
|
||||
trap handler. if rreettuurrnn is executed during a DDEEBBUUGG trap, the
|
||||
last command used to determine the status is the last command
|
||||
executed by the trap handler before rreettuurrnn was invoked. If
|
||||
rreettuurrnn is used outside a function, but during execution of a
|
||||
script by the .. (ssoouurrccee) command, it causes the shell to stop
|
||||
executing that script and return either _n or the exit status of
|
||||
the last command executed within the script as the exit status
|
||||
of the script. If _n is supplied, the return value is its least
|
||||
significant 8 bits. The return status is non-zero if rreettuurrnn is
|
||||
supplied a non-numeric argument, or is used outside a function
|
||||
and not during execution of a script by .. or ssoouurrccee. Any com-
|
||||
mand associated with the RREETTUURRNN trap is executed before execu-
|
||||
tion resumes after the function or script.
|
||||
|
||||
sseett [----aabbeeffhhkkmmnnppttuuvvxxBBCCEEHHPPTT] [--oo _o_p_t_i_o_n_-_n_a_m_e] [_a_r_g ...]
|
||||
sseett [++aabbeeffhhkkmmnnppttuuvvxxBBCCEEHHPPTT] [++oo _o_p_t_i_o_n_-_n_a_m_e] [_a_r_g ...]
|
||||
Without options, the name and value of each shell variable are
|
||||
Without options, the name and value of each shell variable are
|
||||
displayed in a format that can be reused as input for setting or
|
||||
resetting the currently-set variables. Read-only variables can-
|
||||
not be reset. In _p_o_s_i_x mode, only shell variables are listed.
|
||||
The output is sorted according to the current locale. When
|
||||
options are specified, they set or unset shell attributes. Any
|
||||
arguments remaining after option processing are treated as val-
|
||||
not be reset. In _p_o_s_i_x mode, only shell variables are listed.
|
||||
The output is sorted according to the current locale. When
|
||||
options are specified, they set or unset shell attributes. Any
|
||||
arguments remaining after option processing are treated as val-
|
||||
ues for the positional parameters and are assigned, in order, to
|
||||
$$11, $$22, ...... $$_n. Options, if specified, have the following
|
||||
$$11, $$22, ...... $$_n. Options, if specified, have the following
|
||||
meanings:
|
||||
--aa Each variable or function that is created or modified is
|
||||
given the export attribute and marked for export to the
|
||||
given the export attribute and marked for export to the
|
||||
environment of subsequent commands.
|
||||
--bb Report the status of terminated background jobs immedi-
|
||||
--bb Report the status of terminated background jobs immedi-
|
||||
ately, rather than before the next primary prompt. This
|
||||
is effective only when job control is enabled.
|
||||
--ee Exit immediately if a _p_i_p_e_l_i_n_e (which may consist of a
|
||||
single _s_i_m_p_l_e _c_o_m_m_a_n_d), a _l_i_s_t, or a _c_o_m_p_o_u_n_d _c_o_m_m_a_n_d
|
||||
--ee Exit immediately if a _p_i_p_e_l_i_n_e (which may consist of a
|
||||
single _s_i_m_p_l_e _c_o_m_m_a_n_d), a _l_i_s_t, or a _c_o_m_p_o_u_n_d _c_o_m_m_a_n_d
|
||||
(see SSHHEELLLL GGRRAAMMMMAARR above), exits with a non-zero status.
|
||||
The shell does not exit if the command that fails is
|
||||
part of the command list immediately following a wwhhiillee
|
||||
or uunnttiill keyword, part of the test following the iiff or
|
||||
eelliiff reserved words, part of any command executed in a
|
||||
&&&& or |||| list except the command following the final &&&&
|
||||
The shell does not exit if the command that fails is
|
||||
part of the command list immediately following a wwhhiillee
|
||||
or uunnttiill keyword, part of the test following the iiff or
|
||||
eelliiff reserved words, part of any command executed in a
|
||||
&&&& or |||| list except the command following the final &&&&
|
||||
or ||||, any command in a pipeline but the last, or if the
|
||||
command's return value is being inverted with !!. If a
|
||||
compound command other than a subshell returns a non-
|
||||
zero status because a command failed while --ee was being
|
||||
ignored, the shell does not exit. A trap on EERRRR, if
|
||||
set, is executed before the shell exits. This option
|
||||
command's return value is being inverted with !!. If a
|
||||
compound command other than a subshell returns a non-
|
||||
zero status because a command failed while --ee was being
|
||||
ignored, the shell does not exit. A trap on EERRRR, if
|
||||
set, is executed before the shell exits. This option
|
||||
applies to the shell environment and each subshell envi-
|
||||
ronment separately (see CCOOMMMMAANNDD EEXXEECCUUTTIIOONN EENNVVIIRROONNMMEENNTT
|
||||
ronment separately (see CCOOMMMMAANNDD EEXXEECCUUTTIIOONN EENNVVIIRROONNMMEENNTT
|
||||
above), and may cause subshells to exit before executing
|
||||
all the commands in the subshell.
|
||||
|
||||
If a compound command or shell function executes in a
|
||||
context where --ee is being ignored, none of the commands
|
||||
executed within the compound command or function body
|
||||
will be affected by the --ee setting, even if --ee is set
|
||||
and a command returns a failure status. If a compound
|
||||
command or shell function sets --ee while executing in a
|
||||
context where --ee is ignored, that setting will not have
|
||||
any effect until the compound command or the command
|
||||
If a compound command or shell function executes in a
|
||||
context where --ee is being ignored, none of the commands
|
||||
executed within the compound command or function body
|
||||
will be affected by the --ee setting, even if --ee is set
|
||||
and a command returns a failure status. If a compound
|
||||
command or shell function sets --ee while executing in a
|
||||
context where --ee is ignored, that setting will not have
|
||||
any effect until the compound command or the command
|
||||
containing the function call completes.
|
||||
--ff Disable pathname expansion.
|
||||
--hh Remember the location of commands as they are looked up
|
||||
--hh Remember the location of commands as they are looked up
|
||||
for execution. This is enabled by default.
|
||||
--kk All arguments in the form of assignment statements are
|
||||
placed in the environment for a command, not just those
|
||||
--kk All arguments in the form of assignment statements are
|
||||
placed in the environment for a command, not just those
|
||||
that precede the command name.
|
||||
--mm Monitor mode. Job control is enabled. This option is
|
||||
on by default for interactive shells on systems that
|
||||
support it (see JJOOBB CCOONNTTRROOLL above). All processes run
|
||||
--mm Monitor mode. Job control is enabled. This option is
|
||||
on by default for interactive shells on systems that
|
||||
support it (see JJOOBB CCOONNTTRROOLL above). All processes run
|
||||
in a separate process group. When a background job com-
|
||||
pletes, the shell prints a line containing its exit sta-
|
||||
tus.
|
||||
--nn Read commands but do not execute them. This may be used
|
||||
to check a shell script for syntax errors. This is
|
||||
to check a shell script for syntax errors. This is
|
||||
ignored by interactive shells.
|
||||
--oo _o_p_t_i_o_n_-_n_a_m_e
|
||||
The _o_p_t_i_o_n_-_n_a_m_e can be one of the following:
|
||||
@@ -1124,10 +1129,10 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
Same as --aa.
|
||||
bbrraacceeeexxppaanndd
|
||||
Same as --BB.
|
||||
eemmaaccss Use an emacs-style command line editing inter-
|
||||
eemmaaccss Use an emacs-style command line editing inter-
|
||||
face. This is enabled by default when the shell
|
||||
is interactive, unless the shell is started with
|
||||
the ----nnooeeddiittiinngg option. This also affects the
|
||||
the ----nnooeeddiittiinngg option. This also affects the
|
||||
editing interface used for rreeaadd --ee.
|
||||
eerrrreexxiitt Same as --ee.
|
||||
eerrrrttrraaccee
|
||||
@@ -1141,8 +1146,8 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
HHIISSTTOORRYY. This option is on by default in inter-
|
||||
active shells.
|
||||
iiggnnoorreeeeooff
|
||||
The effect is as if the shell command
|
||||
``IGNOREEOF=10'' had been executed (see SShheellll
|
||||
The effect is as if the shell command
|
||||
``IGNOREEOF=10'' had been executed (see SShheellll
|
||||
VVaarriiaabblleess above).
|
||||
kkeeyywwoorrdd Same as --kk.
|
||||
mmoonniittoorr Same as --mm.
|
||||
@@ -1157,341 +1162,348 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
pphhyyssiiccaall
|
||||
Same as --PP.
|
||||
ppiippeeffaaiill
|
||||
If set, the return value of a pipeline is the
|
||||
value of the last (rightmost) command to exit
|
||||
with a non-zero status, or zero if all commands
|
||||
in the pipeline exit successfully. This option
|
||||
If set, the return value of a pipeline is the
|
||||
value of the last (rightmost) command to exit
|
||||
with a non-zero status, or zero if all commands
|
||||
in the pipeline exit successfully. This option
|
||||
is disabled by default.
|
||||
ppoossiixx Change the behavior of bbaasshh where the default
|
||||
operation differs from the POSIX standard to
|
||||
match the standard (_p_o_s_i_x _m_o_d_e). See SSEEEE AALLSSOO
|
||||
ppoossiixx Change the behavior of bbaasshh where the default
|
||||
operation differs from the POSIX standard to
|
||||
match the standard (_p_o_s_i_x _m_o_d_e). See SSEEEE AALLSSOO
|
||||
below for a reference to a document that details
|
||||
how posix mode affects bash's behavior.
|
||||
pprriivviilleeggeedd
|
||||
Same as --pp.
|
||||
vveerrbboossee Same as --vv.
|
||||
vvii Use a vi-style command line editing interface.
|
||||
vvii Use a vi-style command line editing interface.
|
||||
This also affects the editing interface used for
|
||||
rreeaadd --ee.
|
||||
xxttrraaccee Same as --xx.
|
||||
If --oo is supplied with no _o_p_t_i_o_n_-_n_a_m_e, the values of the
|
||||
current options are printed. If ++oo is supplied with no
|
||||
_o_p_t_i_o_n_-_n_a_m_e, a series of sseett commands to recreate the
|
||||
current option settings is displayed on the standard
|
||||
current options are printed. If ++oo is supplied with no
|
||||
_o_p_t_i_o_n_-_n_a_m_e, a series of sseett commands to recreate the
|
||||
current option settings is displayed on the standard
|
||||
output.
|
||||
--pp Turn on _p_r_i_v_i_l_e_g_e_d mode. In this mode, the $$EENNVV and
|
||||
$$BBAASSHH__EENNVV files are not processed, shell functions are
|
||||
not inherited from the environment, and the SSHHEELLLLOOPPTTSS,
|
||||
BBAASSHHOOPPTTSS, CCDDPPAATTHH, and GGLLOOBBIIGGNNOORREE variables, if they
|
||||
--pp Turn on _p_r_i_v_i_l_e_g_e_d mode. In this mode, the $$EENNVV and
|
||||
$$BBAASSHH__EENNVV files are not processed, shell functions are
|
||||
not inherited from the environment, and the SSHHEELLLLOOPPTTSS,
|
||||
BBAASSHHOOPPTTSS, CCDDPPAATTHH, and GGLLOOBBIIGGNNOORREE variables, if they
|
||||
appear in the environment, are ignored. If the shell is
|
||||
started with the effective user (group) id not equal to
|
||||
the real user (group) id, and the --pp option is not sup-
|
||||
started with the effective user (group) id not equal to
|
||||
the real user (group) id, and the --pp option is not sup-
|
||||
plied, these actions are taken and the effective user id
|
||||
is set to the real user id. If the --pp option is sup-
|
||||
plied at startup, the effective user id is not reset.
|
||||
Turning this option off causes the effective user and
|
||||
is set to the real user id. If the --pp option is sup-
|
||||
plied at startup, the effective user id is not reset.
|
||||
Turning this option off causes the effective user and
|
||||
group ids to be set to the real user and group ids.
|
||||
--tt Exit after reading and executing one command.
|
||||
--uu Treat unset variables and parameters other than the spe-
|
||||
cial parameters "@" and "*" as an error when performing
|
||||
parameter expansion. If expansion is attempted on an
|
||||
unset variable or parameter, the shell prints an error
|
||||
message, and, if not interactive, exits with a non-zero
|
||||
cial parameters "@" and "*" as an error when performing
|
||||
parameter expansion. If expansion is attempted on an
|
||||
unset variable or parameter, the shell prints an error
|
||||
message, and, if not interactive, exits with a non-zero
|
||||
status.
|
||||
--vv Print shell input lines as they are read.
|
||||
--xx After expanding each _s_i_m_p_l_e _c_o_m_m_a_n_d, ffoorr command, ccaassee
|
||||
--xx After expanding each _s_i_m_p_l_e _c_o_m_m_a_n_d, ffoorr command, ccaassee
|
||||
command, sseelleecctt command, or arithmetic ffoorr command, dis-
|
||||
play the expanded value of PPSS44, followed by the command
|
||||
play the expanded value of PPSS44, followed by the command
|
||||
and its expanded arguments or associated word list.
|
||||
--BB The shell performs brace expansion (see BBrraaccee EExxppaannssiioonn
|
||||
--BB The shell performs brace expansion (see BBrraaccee EExxppaannssiioonn
|
||||
above). This is on by default.
|
||||
--CC If set, bbaasshh does not overwrite an existing file with
|
||||
the >>, >>&&, and <<>> redirection operators. This may be
|
||||
--CC If set, bbaasshh does not overwrite an existing file with
|
||||
the >>, >>&&, and <<>> redirection operators. This may be
|
||||
overridden when creating output files by using the redi-
|
||||
rection operator >>|| instead of >>.
|
||||
--EE If set, any trap on EERRRR is inherited by shell functions,
|
||||
command substitutions, and commands executed in a sub-
|
||||
shell environment. The EERRRR trap is normally not inher-
|
||||
command substitutions, and commands executed in a sub-
|
||||
shell environment. The EERRRR trap is normally not inher-
|
||||
ited in such cases.
|
||||
--HH Enable !! style history substitution. This option is on
|
||||
by default when the shell is interactive.
|
||||
--PP If set, the shell does not resolve symbolic links when
|
||||
executing commands such as ccdd that change the current
|
||||
--PP If set, the shell does not resolve symbolic links when
|
||||
executing commands such as ccdd that change the current
|
||||
working directory. It uses the physical directory
|
||||
structure instead. By default, bbaasshh follows the logical
|
||||
chain of directories when performing commands which
|
||||
chain of directories when performing commands which
|
||||
change the current directory.
|
||||
--TT If set, any traps on DDEEBBUUGG and RREETTUURRNN are inherited by
|
||||
shell functions, command substitutions, and commands
|
||||
executed in a subshell environment. The DDEEBBUUGG and
|
||||
--TT If set, any traps on DDEEBBUUGG and RREETTUURRNN are inherited by
|
||||
shell functions, command substitutions, and commands
|
||||
executed in a subshell environment. The DDEEBBUUGG and
|
||||
RREETTUURRNN traps are normally not inherited in such cases.
|
||||
---- If no arguments follow this option, then the positional
|
||||
---- If no arguments follow this option, then the positional
|
||||
parameters are unset. Otherwise, the positional parame-
|
||||
ters are set to the _a_r_gs, even if some of them begin
|
||||
ters are set to the _a_r_gs, even if some of them begin
|
||||
with a --.
|
||||
-- Signal the end of options, cause all remaining _a_r_gs to
|
||||
-- Signal the end of options, cause all remaining _a_r_gs to
|
||||
be assigned to the positional parameters. The --xx and --vv
|
||||
options are turned off. If there are no _a_r_gs, the posi-
|
||||
tional parameters remain unchanged.
|
||||
|
||||
The options are off by default unless otherwise noted. Using +
|
||||
rather than - causes these options to be turned off. The
|
||||
options can also be specified as arguments to an invocation of
|
||||
the shell. The current set of options may be found in $$--. The
|
||||
The options are off by default unless otherwise noted. Using +
|
||||
rather than - causes these options to be turned off. The
|
||||
options can also be specified as arguments to an invocation of
|
||||
the shell. The current set of options may be found in $$--. The
|
||||
return status is always true unless an invalid option is encoun-
|
||||
tered.
|
||||
|
||||
sshhiifftt [_n]
|
||||
The positional parameters from _n+1 ... are renamed to $$11 ........
|
||||
Parameters represented by the numbers $$## down to $$##-_n+1 are
|
||||
unset. _n must be a non-negative number less than or equal to
|
||||
$$##. If _n is 0, no parameters are changed. If _n is not given,
|
||||
it is assumed to be 1. If _n is greater than $$##, the positional
|
||||
parameters are not changed. The return status is greater than
|
||||
The positional parameters from _n+1 ... are renamed to $$11 ........
|
||||
Parameters represented by the numbers $$## down to $$##-_n+1 are
|
||||
unset. _n must be a non-negative number less than or equal to
|
||||
$$##. If _n is 0, no parameters are changed. If _n is not given,
|
||||
it is assumed to be 1. If _n is greater than $$##, the positional
|
||||
parameters are not changed. The return status is greater than
|
||||
zero if _n is greater than $$## or less than zero; otherwise 0.
|
||||
|
||||
sshhoopptt [--ppqqssuu] [--oo] [_o_p_t_n_a_m_e ...]
|
||||
Toggle the values of settings controlling optional shell behav-
|
||||
ior. The settings can be either those listed below, or, if the
|
||||
Toggle the values of settings controlling optional shell behav-
|
||||
ior. The settings can be either those listed below, or, if the
|
||||
--oo option is used, those available with the --oo option to the sseett
|
||||
builtin command. With no options, or with the --pp option, a list
|
||||
of all settable options is displayed, with an indication of
|
||||
whether or not each is set. The --pp option causes output to be
|
||||
displayed in a form that may be reused as input. Other options
|
||||
of all settable options is displayed, with an indication of
|
||||
whether or not each is set. The --pp option causes output to be
|
||||
displayed in a form that may be reused as input. Other options
|
||||
have the following meanings:
|
||||
--ss Enable (set) each _o_p_t_n_a_m_e.
|
||||
--uu Disable (unset) each _o_p_t_n_a_m_e.
|
||||
--qq Suppresses normal output (quiet mode); the return status
|
||||
--qq Suppresses normal output (quiet mode); the return status
|
||||
indicates whether the _o_p_t_n_a_m_e is set or unset. If multi-
|
||||
ple _o_p_t_n_a_m_e arguments are given with --qq, the return sta-
|
||||
tus is zero if all _o_p_t_n_a_m_e_s are enabled; non-zero other-
|
||||
ple _o_p_t_n_a_m_e arguments are given with --qq, the return sta-
|
||||
tus is zero if all _o_p_t_n_a_m_e_s are enabled; non-zero other-
|
||||
wise.
|
||||
--oo Restricts the values of _o_p_t_n_a_m_e to be those defined for
|
||||
--oo Restricts the values of _o_p_t_n_a_m_e to be those defined for
|
||||
the --oo option to the sseett builtin.
|
||||
|
||||
If either --ss or --uu is used with no _o_p_t_n_a_m_e arguments, sshhoopptt
|
||||
shows only those options which are set or unset, respectively.
|
||||
Unless otherwise noted, the sshhoopptt options are disabled (unset)
|
||||
If either --ss or --uu is used with no _o_p_t_n_a_m_e arguments, sshhoopptt
|
||||
shows only those options which are set or unset, respectively.
|
||||
Unless otherwise noted, the sshhoopptt options are disabled (unset)
|
||||
by default.
|
||||
|
||||
The return status when listing options is zero if all _o_p_t_n_a_m_e_s
|
||||
are enabled, non-zero otherwise. When setting or unsetting
|
||||
options, the return status is zero unless an _o_p_t_n_a_m_e is not a
|
||||
The return status when listing options is zero if all _o_p_t_n_a_m_e_s
|
||||
are enabled, non-zero otherwise. When setting or unsetting
|
||||
options, the return status is zero unless an _o_p_t_n_a_m_e is not a
|
||||
valid shell option.
|
||||
|
||||
The list of sshhoopptt options is:
|
||||
|
||||
aauuttooccdd If set, a command name that is the name of a directory
|
||||
is executed as if it were the argument to the ccdd com-
|
||||
aauuttooccdd If set, a command name that is the name of a directory
|
||||
is executed as if it were the argument to the ccdd com-
|
||||
mand. This option is only used by interactive shells.
|
||||
ccddaabbllee__vvaarrss
|
||||
If set, an argument to the ccdd builtin command that is
|
||||
not a directory is assumed to be the name of a variable
|
||||
If set, an argument to the ccdd builtin command that is
|
||||
not a directory is assumed to be the name of a variable
|
||||
whose value is the directory to change to.
|
||||
ccddssppeellll If set, minor errors in the spelling of a directory com-
|
||||
ponent in a ccdd command will be corrected. The errors
|
||||
ponent in a ccdd command will be corrected. The errors
|
||||
checked for are transposed characters, a missing charac-
|
||||
ter, and one character too many. If a correction is
|
||||
found, the corrected filename is printed, and the com-
|
||||
mand proceeds. This option is only used by interactive
|
||||
ter, and one character too many. If a correction is
|
||||
found, the corrected filename is printed, and the com-
|
||||
mand proceeds. This option is only used by interactive
|
||||
shells.
|
||||
cchheecckkhhaasshh
|
||||
If set, bbaasshh checks that a command found in the hash ta-
|
||||
ble exists before trying to execute it. If a hashed
|
||||
command no longer exists, a normal path search is per-
|
||||
ble exists before trying to execute it. If a hashed
|
||||
command no longer exists, a normal path search is per-
|
||||
formed.
|
||||
cchheecckkjjoobbss
|
||||
If set, bbaasshh lists the status of any stopped and running
|
||||
jobs before exiting an interactive shell. If any jobs
|
||||
jobs before exiting an interactive shell. If any jobs
|
||||
are running, this causes the exit to be deferred until a
|
||||
second exit is attempted without an intervening command
|
||||
(see JJOOBB CCOONNTTRROOLL above). The shell always postpones
|
||||
second exit is attempted without an intervening command
|
||||
(see JJOOBB CCOONNTTRROOLL above). The shell always postpones
|
||||
exiting if any jobs are stopped.
|
||||
cchheecckkwwiinnssiizzee
|
||||
If set, bbaasshh checks the window size after each command
|
||||
and, if necessary, updates the values of LLIINNEESS and CCOOLL--
|
||||
UUMMNNSS.
|
||||
ccmmddhhiisstt If set, bbaasshh attempts to save all lines of a multiple-
|
||||
line command in the same history entry. This allows
|
||||
easy re-editing of multi-line commands.
|
||||
If set, bbaasshh checks the window size after each external
|
||||
(non-builtin) command and, if necessary, updates the
|
||||
values of LLIINNEESS and CCOOLLUUMMNNSS.
|
||||
ccmmddhhiisstt If set, bbaasshh attempts to save all lines of a multiple-
|
||||
line command in the same history entry. This allows
|
||||
easy re-editing of multi-line commands. This option is
|
||||
enabled by default, but only has an effect if command
|
||||
history is enabled, as described above under HHIISSTTOORRYY.
|
||||
ccoommppaatt3311
|
||||
If set, bbaasshh changes its behavior to that of version 3.1
|
||||
with respect to quoted arguments to the [[[[ conditional
|
||||
with respect to quoted arguments to the [[[[ conditional
|
||||
command's ==~~ operator and locale-specific string compar-
|
||||
ison when using the [[[[ conditional command's << and >>
|
||||
operators. Bash versions prior to bash-4.1 use ASCII
|
||||
ison when using the [[[[ conditional command's << and >>
|
||||
operators. Bash versions prior to bash-4.1 use ASCII
|
||||
collation and _s_t_r_c_m_p(3); bash-4.1 and later use the cur-
|
||||
rent locale's collation sequence and _s_t_r_c_o_l_l(3).
|
||||
ccoommppaatt3322
|
||||
If set, bbaasshh changes its behavior to that of version 3.2
|
||||
with respect to locale-specific string comparison when
|
||||
using the [[[[ conditional command's << and >> operators
|
||||
(see previous item) and the effect of interrupting a
|
||||
command list. Bash versions 3.2 and earlier continue
|
||||
with the next command in the list after one terminates
|
||||
with respect to locale-specific string comparison when
|
||||
using the [[[[ conditional command's << and >> operators
|
||||
(see previous item) and the effect of interrupting a
|
||||
command list. Bash versions 3.2 and earlier continue
|
||||
with the next command in the list after one terminates
|
||||
due to an interrupt.
|
||||
ccoommppaatt4400
|
||||
If set, bbaasshh changes its behavior to that of version 4.0
|
||||
with respect to locale-specific string comparison when
|
||||
using the [[[[ conditional command's << and >> operators
|
||||
(see description of ccoommppaatt3311) and the effect of inter-
|
||||
rupting a command list. Bash versions 4.0 and later
|
||||
interrupt the list as if the shell received the inter-
|
||||
rupt; previous versions continue with the next command
|
||||
with respect to locale-specific string comparison when
|
||||
using the [[[[ conditional command's << and >> operators
|
||||
(see description of ccoommppaatt3311) and the effect of inter-
|
||||
rupting a command list. Bash versions 4.0 and later
|
||||
interrupt the list as if the shell received the inter-
|
||||
rupt; previous versions continue with the next command
|
||||
in the list.
|
||||
ccoommppaatt4411
|
||||
If set, bbaasshh, when in _p_o_s_i_x mode, treats a single quote
|
||||
in a double-quoted parameter expansion as a special
|
||||
character. The single quotes must match (an even num-
|
||||
ber) and the characters between the single quotes are
|
||||
considered quoted. This is the behavior of posix mode
|
||||
through version 4.1. The default bash behavior remains
|
||||
If set, bbaasshh, when in _p_o_s_i_x mode, treats a single quote
|
||||
in a double-quoted parameter expansion as a special
|
||||
character. The single quotes must match (an even num-
|
||||
ber) and the characters between the single quotes are
|
||||
considered quoted. This is the behavior of posix mode
|
||||
through version 4.1. The default bash behavior remains
|
||||
as in previous versions.
|
||||
ccoommppaatt4422
|
||||
If set, bbaasshh does not process the replacement string in
|
||||
the pattern substitution word expansion using quote
|
||||
If set, bbaasshh does not process the replacement string in
|
||||
the pattern substitution word expansion using quote
|
||||
removal.
|
||||
ccoommppaatt4433
|
||||
If set, bbaasshh does not print a warning message if an
|
||||
attempt is made to use a quoted compound array assign-
|
||||
ment as an argument to ddeeccllaarree, makes word expansion
|
||||
errors non-fatal errors that cause the current command
|
||||
to fail (the default behavior is to make them fatal
|
||||
If set, bbaasshh does not print a warning message if an
|
||||
attempt is made to use a quoted compound array assign-
|
||||
ment as an argument to ddeeccllaarree, makes word expansion
|
||||
errors non-fatal errors that cause the current command
|
||||
to fail (the default behavior is to make them fatal
|
||||
errors that cause the shell to exit), and does not reset
|
||||
the loop state when a shell function is executed (this
|
||||
allows bbrreeaakk or ccoonnttiinnuuee in a shell function to affect
|
||||
the loop state when a shell function is executed (this
|
||||
allows bbrreeaakk or ccoonnttiinnuuee in a shell function to affect
|
||||
loops in the caller's context).
|
||||
ccoommpplleettee__ffuullllqquuoottee
|
||||
If set, bbaasshh quotes all shell metacharacters in file-
|
||||
names and directory names when performing completion.
|
||||
If set, bbaasshh quotes all shell metacharacters in file-
|
||||
names and directory names when performing completion.
|
||||
If not set, bbaasshh removes metacharacters such as the dol-
|
||||
lar sign from the set of characters that will be quoted
|
||||
in completed filenames when these metacharacters appear
|
||||
in shell variable references in words to be completed.
|
||||
This means that dollar signs in variable names that
|
||||
expand to directories will not be quoted; however, any
|
||||
dollar signs appearing in filenames will not be quoted,
|
||||
either. This is active only when bash is using back-
|
||||
slashes to quote completed filenames. This variable is
|
||||
set by default, which is the default bash behavior in
|
||||
lar sign from the set of characters that will be quoted
|
||||
in completed filenames when these metacharacters appear
|
||||
in shell variable references in words to be completed.
|
||||
This means that dollar signs in variable names that
|
||||
expand to directories will not be quoted; however, any
|
||||
dollar signs appearing in filenames will not be quoted,
|
||||
either. This is active only when bash is using back-
|
||||
slashes to quote completed filenames. This variable is
|
||||
set by default, which is the default bash behavior in
|
||||
versions through 4.2.
|
||||
ddiirreexxppaanndd
|
||||
If set, bbaasshh replaces directory names with the results
|
||||
of word expansion when performing filename completion.
|
||||
This changes the contents of the readline editing buf-
|
||||
fer. If not set, bbaasshh attempts to preserve what the
|
||||
If set, bbaasshh replaces directory names with the results
|
||||
of word expansion when performing filename completion.
|
||||
This changes the contents of the readline editing buf-
|
||||
fer. If not set, bbaasshh attempts to preserve what the
|
||||
user typed.
|
||||
ddiirrssppeellll
|
||||
If set, bbaasshh attempts spelling correction on directory
|
||||
names during word completion if the directory name ini-
|
||||
If set, bbaasshh attempts spelling correction on directory
|
||||
names during word completion if the directory name ini-
|
||||
tially supplied does not exist.
|
||||
ddoottgglloobb If set, bbaasshh includes filenames beginning with a `.' in
|
||||
the results of pathname expansion. The filenames ````..''''
|
||||
and ````....'''' must always be matched explicitly, even if
|
||||
ddoottgglloobb If set, bbaasshh includes filenames beginning with a `.' in
|
||||
the results of pathname expansion. The filenames ````..''''
|
||||
and ````....'''' must always be matched explicitly, even if
|
||||
ddoottgglloobb is set.
|
||||
eexxeeccffaaiill
|
||||
If set, a non-interactive shell will not exit if it can-
|
||||
not execute the file specified as an argument to the
|
||||
eexxeecc builtin command. An interactive shell does not
|
||||
not execute the file specified as an argument to the
|
||||
eexxeecc builtin command. An interactive shell does not
|
||||
exit if eexxeecc fails.
|
||||
eexxppaanndd__aalliiaasseess
|
||||
If set, aliases are expanded as described above under
|
||||
If set, aliases are expanded as described above under
|
||||
AALLIIAASSEESS. This option is enabled by default for interac-
|
||||
tive shells.
|
||||
eexxttddeebbuugg
|
||||
If set at shell invocation, arrange to execute the
|
||||
debugger profile before the shell starts, identical to
|
||||
the ----ddeebbuuggggeerr option. If set after invocation, behav-
|
||||
If set at shell invocation, arrange to execute the
|
||||
debugger profile before the shell starts, identical to
|
||||
the ----ddeebbuuggggeerr option. If set after invocation, behav-
|
||||
ior intended for use by debuggers is enabled:
|
||||
11.. The --FF option to the ddeeccllaarree builtin displays the
|
||||
source file name and line number corresponding to
|
||||
each function name supplied as an argument.
|
||||
22.. If the command run by the DDEEBBUUGG trap returns a
|
||||
non-zero value, the next command is skipped and
|
||||
22.. If the command run by the DDEEBBUUGG trap returns a
|
||||
non-zero value, the next command is skipped and
|
||||
not executed.
|
||||
33.. If the command run by the DDEEBBUUGG trap returns a
|
||||
value of 2, and the shell is executing in a sub-
|
||||
routine (a shell function or a shell script exe-
|
||||
cuted by the .. or ssoouurrccee builtins), the shell
|
||||
33.. If the command run by the DDEEBBUUGG trap returns a
|
||||
value of 2, and the shell is executing in a sub-
|
||||
routine (a shell function or a shell script exe-
|
||||
cuted by the .. or ssoouurrccee builtins), the shell
|
||||
simulates a call to rreettuurrnn.
|
||||
44.. BBAASSHH__AARRGGCC and BBAASSHH__AARRGGVV are updated as described
|
||||
44.. BBAASSHH__AARRGGCC and BBAASSHH__AARRGGVV are updated as described
|
||||
in their descriptions above.
|
||||
55.. Function tracing is enabled: command substitu-
|
||||
55.. Function tracing is enabled: command substitu-
|
||||
tion, shell functions, and subshells invoked with
|
||||
(( _c_o_m_m_a_n_d )) inherit the DDEEBBUUGG and RREETTUURRNN traps.
|
||||
66.. Error tracing is enabled: command substitution,
|
||||
shell functions, and subshells invoked with ((
|
||||
66.. Error tracing is enabled: command substitution,
|
||||
shell functions, and subshells invoked with ((
|
||||
_c_o_m_m_a_n_d )) inherit the EERRRR trap.
|
||||
eexxttgglloobb If set, the extended pattern matching features described
|
||||
above under PPaatthhnnaammee EExxppaannssiioonn are enabled.
|
||||
eexxttqquuoottee
|
||||
If set, $$'_s_t_r_i_n_g' and $$"_s_t_r_i_n_g" quoting is performed
|
||||
within $${{_p_a_r_a_m_e_t_e_r}} expansions enclosed in double
|
||||
If set, $$'_s_t_r_i_n_g' and $$"_s_t_r_i_n_g" quoting is performed
|
||||
within $${{_p_a_r_a_m_e_t_e_r}} expansions enclosed in double
|
||||
quotes. This option is enabled by default.
|
||||
ffaaiillgglloobb
|
||||
If set, patterns which fail to match filenames during
|
||||
If set, patterns which fail to match filenames during
|
||||
pathname expansion result in an expansion error.
|
||||
ffoorrccee__ffiiggnnoorree
|
||||
If set, the suffixes specified by the FFIIGGNNOORREE shell
|
||||
variable cause words to be ignored when performing word
|
||||
If set, the suffixes specified by the FFIIGGNNOORREE shell
|
||||
variable cause words to be ignored when performing word
|
||||
completion even if the ignored words are the only possi-
|
||||
ble completions. See SSHHEELLLL VVAARRIIAABBLLEESS above for a
|
||||
description of FFIIGGNNOORREE. This option is enabled by
|
||||
description of FFIIGGNNOORREE. This option is enabled by
|
||||
default.
|
||||
gglloobbaasscciiiirraannggeess
|
||||
If set, range expressions used in pattern matching
|
||||
bracket expressions (see PPaatttteerrnn MMaattcchhiinngg above) behave
|
||||
as if in the traditional C locale when performing com-
|
||||
If set, range expressions used in pattern matching
|
||||
bracket expressions (see PPaatttteerrnn MMaattcchhiinngg above) behave
|
||||
as if in the traditional C locale when performing com-
|
||||
parisons. That is, the current locale's collating
|
||||
sequence is not taken into account, so bb will not col-
|
||||
late between AA and BB, and upper-case and lower-case
|
||||
sequence is not taken into account, so bb will not col-
|
||||
late between AA and BB, and upper-case and lower-case
|
||||
ASCII characters will collate together.
|
||||
gglloobbssttaarr
|
||||
If set, the pattern **** used in a pathname expansion con-
|
||||
text will match all files and zero or more directories
|
||||
and subdirectories. If the pattern is followed by a //,
|
||||
text will match all files and zero or more directories
|
||||
and subdirectories. If the pattern is followed by a //,
|
||||
only directories and subdirectories match.
|
||||
ggnnuu__eerrrrffmmtt
|
||||
If set, shell error messages are written in the standard
|
||||
GNU error message format.
|
||||
hhiissttaappppeenndd
|
||||
If set, the history list is appended to the file named
|
||||
by the value of the HHIISSTTFFIILLEE variable when the shell
|
||||
If set, the history list is appended to the file named
|
||||
by the value of the HHIISSTTFFIILLEE variable when the shell
|
||||
exits, rather than overwriting the file.
|
||||
hhiissttrreeeeddiitt
|
||||
If set, and rreeaaddlliinnee is being used, a user is given the
|
||||
If set, and rreeaaddlliinnee is being used, a user is given the
|
||||
opportunity to re-edit a failed history substitution.
|
||||
hhiissttvveerriiffyy
|
||||
If set, and rreeaaddlliinnee is being used, the results of his-
|
||||
tory substitution are not immediately passed to the
|
||||
shell parser. Instead, the resulting line is loaded
|
||||
If set, and rreeaaddlliinnee is being used, the results of his-
|
||||
tory substitution are not immediately passed to the
|
||||
shell parser. Instead, the resulting line is loaded
|
||||
into the rreeaaddlliinnee editing buffer, allowing further modi-
|
||||
fication.
|
||||
hhoossttccoommpplleettee
|
||||
If set, and rreeaaddlliinnee is being used, bbaasshh will attempt to
|
||||
perform hostname completion when a word containing a @@
|
||||
is being completed (see CCoommpplleettiinngg under RREEAADDLLIINNEE
|
||||
perform hostname completion when a word containing a @@
|
||||
is being completed (see CCoommpplleettiinngg under RREEAADDLLIINNEE
|
||||
above). This is enabled by default.
|
||||
hhuuppoonneexxiitt
|
||||
If set, bbaasshh will send SSIIGGHHUUPP to all jobs when an inter-
|
||||
active login shell exits.
|
||||
iinnhheerriitt__eerrrreexxiitt
|
||||
If set, command substitution inherits the value of the
|
||||
eerrrreexxiitt option, instead of unsetting it in the subshell
|
||||
environment. This option is enabled when _p_o_s_i_x _m_o_d_e is
|
||||
If set, command substitution inherits the value of the
|
||||
eerrrreexxiitt option, instead of unsetting it in the subshell
|
||||
environment. This option is enabled when _p_o_s_i_x _m_o_d_e is
|
||||
enabled.
|
||||
iinntteerraaccttiivvee__ccoommmmeennttss
|
||||
If set, allow a word beginning with ## to cause that word
|
||||
and all remaining characters on that line to be ignored
|
||||
in an interactive shell (see CCOOMMMMEENNTTSS above). This
|
||||
and all remaining characters on that line to be ignored
|
||||
in an interactive shell (see CCOOMMMMEENNTTSS above). This
|
||||
option is enabled by default.
|
||||
llaassttppiippee
|
||||
If set, and job control is not active, the shell runs
|
||||
If set, and job control is not active, the shell runs
|
||||
the last command of a pipeline not executed in the back-
|
||||
ground in the current shell environment.
|
||||
lliitthhiisstt If set, and the ccmmddhhiisstt option is enabled, multi-line
|
||||
lliitthhiisstt If set, and the ccmmddhhiisstt option is enabled, multi-line
|
||||
commands are saved to the history with embedded newlines
|
||||
rather than using semicolon separators where possible.
|
||||
llooccaallvvaarr__iinnhheerriitt
|
||||
If set, local variables inherit the value and attributes
|
||||
of a variable of the same name that exists at a previous
|
||||
scope before any new value is assigned. The nameref
|
||||
attribute is not inherited.
|
||||
llooggiinn__sshheellll
|
||||
The shell sets this option if it is started as a login
|
||||
shell (see IINNVVOOCCAATTIIOONN above). The value may not be
|
||||
@@ -1782,7 +1794,7 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
|
||||
option is supplied, wwaaiitt waits for any job to terminate and
|
||||
returns its exit status. If the --ff option is supplied, and job
|
||||
control is enabled, wwaaiitt forces _i_d to terminate before returning
|
||||
its status, intead of returning when it changes status. If _i_d
|
||||
its status, instead of returning when it changes status. If _i_d
|
||||
specifies a non-existent process or job, the return status is
|
||||
127. Otherwise, the return status is the exit status of the
|
||||
last process or job waited for.
|
||||
|
||||
+943
-924
File diff suppressed because it is too large
Load Diff
+1
-1
@@ -1,6 +1,6 @@
|
||||
%!PS-Adobe-3.0
|
||||
%%Creator: groff version 1.22.3
|
||||
%%CreationDate: Mon Apr 3 16:33:54 2017
|
||||
%%CreationDate: Mon Jun 26 09:16:27 2017
|
||||
%%DocumentNeededResources: font Times-Roman
|
||||
%%+ font Times-Bold
|
||||
%%DocumentSuppliedResources: procset grops 1.22 3
|
||||
|
||||
+3
-3
@@ -2,10 +2,10 @@
|
||||
Copyright (C) 1988-2017 Free Software Foundation, Inc.
|
||||
@end ignore
|
||||
|
||||
@set LASTCHANGE Thu May 25 16:01:44 EDT 2017
|
||||
@set LASTCHANGE Fri Jun 23 12:42:54 EDT 2017
|
||||
|
||||
@set EDITION 4.4
|
||||
@set VERSION 4.4
|
||||
|
||||
@set UPDATED 25 May 2017
|
||||
@set UPDATED-MONTH May 2017
|
||||
@set UPDATED 23 June 2017
|
||||
@set UPDATED-MONTH June 2017
|
||||
|
||||
Reference in New Issue
Block a user