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https://https.git.savannah.gnu.org/git/bash.git
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commit bash-20060413 snapshot
This commit is contained in:
Chet Ramey
@@ -1,5 +1,5 @@
|
||||
From: chet@po.cwru.edu (Chet Ramey)
|
||||
To: bug-bash@gnu.org
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.30)
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.33)
|
||||
Reply-To: chet@po.cwru.edu
|
||||
|
||||
|
||||
@@ -1,9 +1,8 @@
|
||||
Newsgroups: comp.unix.shell,comp.unix.questions
|
||||
Distribution: world
|
||||
From: chet@po.cwru.edu (Chet Ramey)
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.30)
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.33)
|
||||
Organization: Case Western Reserve University
|
||||
Summary: A's to Q's about BASH, the Bourne-Again SHell
|
||||
Summary: As to Qs about BASH, the Bourne-Again SHell
|
||||
Reply-To: chet@po.cwru.edu
|
||||
Followup-To: poster
|
||||
|
||||
|
||||
@@ -1,9 +1,8 @@
|
||||
Newsgroups: comp.unix.shell,comp.unix.questions,comp.answers,news.answers
|
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From: chet@po.cwru.edu (Chet Ramey)
|
||||
Subject: [gnu.bash.bug] BASH Frequently-Asked Questions (FAQ version 3.30)
|
||||
Subject: [gnu.bash.bug] BASH Frequently-Asked Questions (FAQ version 3.33)
|
||||
Organization: Case Western Reserve University
|
||||
Summary: A's to Q's about BASH, the Bourne-Again SHell
|
||||
Summary: As to Qs about BASH, the Bourne-Again SHell
|
||||
Reply-To: chet@po.cwru.edu
|
||||
Followup-To: poster
|
||||
Approved: news-answers-request@MIT.EDU
|
||||
|
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|
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+74
-56
@@ -1,18 +1,18 @@
|
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From: chet@po.cwru.edu (Chet Ramey)
|
||||
To: bug-bash@gnu.org
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.30)
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.33)
|
||||
Reply-To: chet@po.cwru.edu
|
||||
|
||||
Archive-name: unix-faq/shell/bash
|
||||
Posting-Frequency: monthly
|
||||
Submitted-By: chet@po.cwru.edu (Chet Ramey)
|
||||
Last-Modified: Mon Feb 14 11:57:02 EST 2005
|
||||
FAQ-Version: 3.30
|
||||
Bash-Version: 3.0
|
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Last-Modified: Thu Apr 13 13:19:33 EDT 2006
|
||||
FAQ-Version: 3.33
|
||||
Bash-Version: 3.1
|
||||
URL: ftp://ftp.cwru.edu/pub/bash/FAQ
|
||||
Maintainer: chet@po.cwru.edu (Chet Ramey)
|
||||
|
||||
This is the Bash FAQ, version 3.30, for Bash version 3.0.
|
||||
This is the Bash FAQ, version 3.33, for Bash version 3.1.
|
||||
|
||||
This document contains a set of frequently-asked questions concerning
|
||||
Bash, the GNU Bourne-Again Shell. Bash is a freely-available command
|
||||
@@ -50,9 +50,9 @@ A10) What is the bash `posix mode'?
|
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|
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Section B: The latest version
|
||||
|
||||
B1) What's new in version 3.0?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.0 and
|
||||
bash-1.14.7?
|
||||
B1) What's new in version 3.1?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.1 and
|
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bash-2.05b?
|
||||
|
||||
Section C: Differences from other Unix shells
|
||||
|
||||
@@ -154,26 +154,26 @@ of Case Western Reserve University.
|
||||
|
||||
A2) What's the latest version?
|
||||
|
||||
The latest version is 3.0, first made available on 27 July, 2004.
|
||||
The latest version is 3.1, first made available on 09 December, 2005.
|
||||
|
||||
A3) Where can I get it?
|
||||
|
||||
Bash is the GNU project's shell, and so is available from the
|
||||
master GNU archive site, ftp.gnu.org, and its mirrors. The
|
||||
latest version is also available for FTP from ftp.cwru.edu.
|
||||
The following URLs tell how to get version 3.0:
|
||||
The following URLs tell how to get version 3.1:
|
||||
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-3.0.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.0.tar.gz
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-3.1.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.1.tar.gz
|
||||
|
||||
Formatted versions of the documentation are available with the URLs:
|
||||
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-3.0.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-doc-3.0.tar.gz
|
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ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-3.1.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-doc-3.1.tar.gz
|
||||
|
||||
Any patches for the current version are available with the URL:
|
||||
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.0-patches/
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.1-patches/
|
||||
|
||||
A4) On what machines will bash run?
|
||||
|
||||
@@ -204,10 +204,10 @@ of their CYGWIN project. For more information about the project, see
|
||||
http://www.cygwin.com/.
|
||||
|
||||
Cygnus originally ported bash-1.14.7, and that port was part of their
|
||||
early GNU-Win32 (the original name) releases. Cygnus has also done a
|
||||
port of bash-2.05b to the CYGWIN environment, and it is available as
|
||||
part of their current release. Bash-3.0 is currently being tested and
|
||||
should be available soon.
|
||||
early GNU-Win32 (the original name) releases. Cygnus has also done
|
||||
ports of bash-2.05b and bash-3.0 to the CYGWIN environment, and both
|
||||
are available as part of their current release. Bash-3.1 is currently
|
||||
being tested and should be available soon.
|
||||
|
||||
Bash-2.05b and later versions should require no local Cygnus changes to
|
||||
build and run under CYGWIN.
|
||||
@@ -229,7 +229,8 @@ ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/bsh204s.zip source
|
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Mark began to work with bash-2.05, but I don't know the current status.
|
||||
|
||||
Bash-3.0 compiles and runs with no modifications under Microsoft's Services
|
||||
for Unix (SFU), once known as Interix.
|
||||
for Unix (SFU), once known as Interix. I do not anticipate any problems
|
||||
with building bash-3.1.
|
||||
|
||||
A6) How can I build bash with gcc?
|
||||
|
||||
@@ -398,15 +399,25 @@ They are also listed in a section in the Bash Reference Manual
|
||||
|
||||
Section B: The latest version
|
||||
|
||||
B1) What's new in version 3.0?
|
||||
B1) What's new in version 3.1?
|
||||
|
||||
Bash-3.0 is the third major release of bash. The features introduced
|
||||
in the intermediate releases following bash-2.05 have been completed.
|
||||
Support for the bash debugger (a separate project) has been integrated.
|
||||
Bash-3.1 is the first maintenance release of the third major release of
|
||||
bash. It contains the following significant new features (see the manual
|
||||
page for complete descriptions and the CHANGES and NEWS files in the
|
||||
bash-3.1 distribution).
|
||||
|
||||
Bash-3.0 contains the following new features (see the manual page for
|
||||
complete descriptions and the CHANGES and NEWS files in the bash-3.0
|
||||
distribution):
|
||||
o Bash-3.1 may now be configured and built in a mode that enforces strict
|
||||
POSIX compliance.
|
||||
|
||||
o The `+=' assignment operator, which appends to the value of a string or
|
||||
array variable, has been implemented.
|
||||
|
||||
o It is now possible to ignore case when matching in contexts other than
|
||||
filename generation using the new `nocasematch' shell option.
|
||||
|
||||
A short feature history dating from Bash-2.0:
|
||||
|
||||
Bash-3.0 contained the following new features:
|
||||
|
||||
o Features to support the bash debugger have been implemented, and there
|
||||
is a new `extdebug' option to turn the non-default options on
|
||||
@@ -436,8 +447,6 @@ o The `jobs', `kill', and `wait' builtins now accept job control notation
|
||||
o The `gettext' package and libintl have been integrated, and the shell
|
||||
messages may be translated into other languages
|
||||
|
||||
A short feature history dating from Bash-2.0:
|
||||
|
||||
Bash-2.05b introduced the following new features:
|
||||
|
||||
o support for multibyte characters has been added to both bash and readline
|
||||
@@ -645,10 +654,10 @@ grammar tighter and smaller (66 reduce-reduce conflicts gone)
|
||||
lots of code now smaller and faster
|
||||
test suite greatly expanded
|
||||
|
||||
B2) Are there any user-visible incompatibilities between bash-3.0 and
|
||||
bash-1.14.7?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.1 and
|
||||
bash-2.05b?
|
||||
|
||||
There are a few incompatibilities between version 1.14.7 and version 3.0.
|
||||
There are a few incompatibilities between version 2.05b and version 3.1.
|
||||
They are detailed in the file COMPAT in the bash distribution. That file
|
||||
is not meant to be all-encompassing; send mail to bash-maintainers@gnu.org
|
||||
if if you find something that's not mentioned there.
|
||||
@@ -702,7 +711,7 @@ Things bash has that sh does not:
|
||||
read -e/-p/-a/-t/-n/-d/-s/-u,
|
||||
readonly -a/-f/name=value, trap -l, set +o,
|
||||
set -b/-m/-o option/-h/-p/-B/-C/-H/-P,
|
||||
unset -f/-v, ulimit -m/-p/-u,
|
||||
unset -f/-v, ulimit -i/-m/-p/-q/-u/-x,
|
||||
type -a/-p/-t/-f/-P, suspend -f, kill -n,
|
||||
test -o optname/s1 == s2/s1 < s2/s1 > s2/-nt/-ot/-ef/-O/-G/-S
|
||||
bash reads ~/.bashrc for interactive shells, $ENV for non-interactive
|
||||
@@ -731,11 +740,12 @@ Things bash has that sh does not:
|
||||
case-insensitive pattern matching and globbing
|
||||
variable assignments preceding commands affect only that command,
|
||||
even for builtins and functions
|
||||
posix mode
|
||||
posix mode and strict posix conformance
|
||||
redirection to /dev/fd/N, /dev/stdin, /dev/stdout, /dev/stderr,
|
||||
/dev/tcp/host/port, /dev/udp/host/port
|
||||
debugger support, including `caller' builtin and new variables
|
||||
RETURN trap
|
||||
the `+=' assignment operator
|
||||
|
||||
|
||||
Things sh has that bash does not:
|
||||
@@ -797,8 +807,8 @@ Things bash has or uses that ksh88 does not:
|
||||
set -o braceexpand/-o histexpand/-o interactive-comments/
|
||||
-o notify/-o physical/-o posix/-o hashall/-o onecmd/
|
||||
-h/-B/-C/-b/-H/-P, set +o, suspend, trap -l, type,
|
||||
typeset -a/-F/-p, ulimit -u, umask -S, alias -p, shopt,
|
||||
disown, printf, complete, compgen
|
||||
typeset -a/-F/-p, ulimit -i/-q/-u/-x, umask -S, alias -p,
|
||||
shopt, disown, printf, complete, compgen
|
||||
`!' csh-style history expansion
|
||||
POSIX.2-style globbing character classes
|
||||
POSIX.2-style globbing equivalence classes
|
||||
@@ -813,6 +823,7 @@ Things bash has or uses that ksh88 does not:
|
||||
RETURN trap
|
||||
Timestamps in history entries
|
||||
{x..y} brace expansion
|
||||
The `+=' assignment operator
|
||||
|
||||
Things ksh88 has or uses that bash does not:
|
||||
tracked aliases (alias -t)
|
||||
@@ -859,7 +870,6 @@ New things in ksh-93 not in bash-3.0:
|
||||
`fc' has been renamed to `hist'
|
||||
`.' can execute shell functions
|
||||
exit statuses between 0 and 255
|
||||
`+=' variable assignment operator
|
||||
FPATH and PATH mixing
|
||||
getopts -a
|
||||
-I invocation option
|
||||
@@ -893,6 +903,7 @@ New things in ksh-93 present in bash-3.0:
|
||||
command name completion
|
||||
ENV processed only for interactive shells
|
||||
set -o pipefail
|
||||
The `+=' assignment operator
|
||||
|
||||
Section D: Why does bash do some things differently than other Unix shells?
|
||||
|
||||
@@ -1116,9 +1127,8 @@ will try to write on a pipe without a reader. In that case, bash
|
||||
will print `Broken pipe' to stderr when ps is killed by a
|
||||
SIGPIPE.
|
||||
|
||||
You can build a version of bash that will not report SIGPIPE errors
|
||||
by uncommenting the definition of DONT_REPORT_SIGPIPE in the file
|
||||
config-top.h.
|
||||
As of bash-3.1, bash will not report SIGPIPE errors by default. You
|
||||
can build a version of bash that will report such errors.
|
||||
|
||||
E3) When I have terminal escape sequences in my prompt, why does bash
|
||||
wrap lines at the wrong column?
|
||||
@@ -1145,12 +1155,12 @@ simple calls to `read'. For example, piping a command's output
|
||||
into a `while' loop that repeatedly calls `read' will result in
|
||||
the same behavior.
|
||||
|
||||
Each element of a pipeline runs in a separate process, a child of
|
||||
the shell running the pipeline. A subprocess cannot affect its
|
||||
parent's environment. When the `read' command sets the variable
|
||||
to the input, that variable is set only in the subshell, not the
|
||||
parent shell. When the subshell exits, the value of the variable
|
||||
is lost.
|
||||
Each element of a pipeline, even a builtin or shell function,
|
||||
runs in a separate process, a child of the shell running the
|
||||
pipeline. A subprocess cannot affect its parent's environment.
|
||||
When the `read' command sets the variable to the input, that
|
||||
variable is set only in the subshell, not the parent shell. When
|
||||
the subshell exits, the value of the variable is lost.
|
||||
|
||||
Many pipelines that end with `read variable' can be converted
|
||||
into command substitutions, which will capture the output of
|
||||
@@ -1579,6 +1589,9 @@ this. These variables can be set in your .inputrc or using the bash
|
||||
The `set' commands between the single quotes may also be placed
|
||||
in ~/.inputrc.
|
||||
|
||||
The script examples/scripts.noah/meta.bash encapsulates the bind
|
||||
commands in a shell function.
|
||||
|
||||
G2) How do I write a function `x' to replace builtin command `x', but
|
||||
still invoke the command from within the function?
|
||||
|
||||
@@ -1752,13 +1765,9 @@ ftp.cwru.edu in the `pub/bash' directory.
|
||||
Cameron Newham and Bill Rosenblatt have written a book on bash, published
|
||||
by O'Reilly and Associates. The book is based on Bill Rosenblatt's Korn
|
||||
Shell book. The title is ``Learning the Bash Shell'', and the ISBN number
|
||||
is 1-56592-147-X. Look for it in fine bookstores near you. This book
|
||||
covers bash-1.14, but has an appendix describing some of the new features
|
||||
in bash-2.0.
|
||||
|
||||
A second edition of this book is available, published in January, 1998.
|
||||
The ISBN number is 1-56592-347-2. Look for it in the same fine bookstores
|
||||
or on the web.
|
||||
of the third edition, published in March, 2005, is 0-596-00965-8. Look for
|
||||
it in fine bookstores near you. This edition of the book has been updated
|
||||
to cover bash-3.0.
|
||||
|
||||
The GNU Bash Reference Manual has been published as a printed book by
|
||||
Network Theory Ltd (Paperback, ISBN: 0-9541617-7-7, Feb 2003). It covers
|
||||
@@ -1766,6 +1775,16 @@ bash-2.0 and is available from most online bookstores (see
|
||||
http://www.network-theory.co.uk/bash/manual/ for details). The publisher
|
||||
will donate $1 to the Free Software Foundation for each copy sold.
|
||||
|
||||
Arnold Robbins and Nelson Beebe have written ``Classic Shell Scripting'',
|
||||
published by O'Reilly. The first edition, with ISBN number 0-596-00595-4,
|
||||
was published in May, 2005.
|
||||
|
||||
Chris F. A. Johnson, a frequent contributor to comp.unix.shell and
|
||||
gnu.bash.bug, has written ``Shell Scripting Recipes: A Problem-Solution
|
||||
Approach,'' a new book on shell scripting, concentrating on features of
|
||||
the POSIX standard helpful to shell script writers. The first edition from
|
||||
Apress, with ISBN number 1-59059-471-1, was published in May, 2005.
|
||||
|
||||
H3) What's coming in future versions?
|
||||
|
||||
These are features I hope to include in a future version of bash.
|
||||
@@ -1784,16 +1803,15 @@ a bash programmer's guide with a chapter on creating loadable builtins
|
||||
a better loadable interface to perl with access to the shell builtins and
|
||||
variables (contributions gratefully accepted)
|
||||
ksh93-like `nameref' variables
|
||||
ksh93-like `+=' variable assignment operator
|
||||
ksh93-like `xx.yy' variables (including some of the .sh.* variables) and
|
||||
associated disipline functions
|
||||
Some of the new ksh93 pattern matching operators, like backreferencing
|
||||
|
||||
H5) When will the next release appear?
|
||||
|
||||
The next version will appear sometime in 2005. Never make predictions.
|
||||
The next version will appear sometime in 2006. Never make predictions.
|
||||
|
||||
This document is Copyright 1995-2004 by Chester Ramey.
|
||||
This document is Copyright 1995-2005 by Chester Ramey.
|
||||
|
||||
Permission is hereby granted, without written agreement and
|
||||
without license or royalty fees, to use, copy, and distribute
|
||||
|
||||
+75
-58
@@ -1,22 +1,21 @@
|
||||
Newsgroups: comp.unix.shell,comp.unix.questions
|
||||
Distribution: world
|
||||
From: chet@po.cwru.edu (Chet Ramey)
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.30)
|
||||
Subject: BASH Frequently-Asked Questions (FAQ version 3.33)
|
||||
Organization: Case Western Reserve University
|
||||
Summary: A's to Q's about BASH, the Bourne-Again SHell
|
||||
Summary: As to Qs about BASH, the Bourne-Again SHell
|
||||
Reply-To: chet@po.cwru.edu
|
||||
Followup-To: poster
|
||||
|
||||
Archive-name: unix-faq/shell/bash
|
||||
Posting-Frequency: monthly
|
||||
Submitted-By: chet@po.cwru.edu (Chet Ramey)
|
||||
Last-Modified: Mon Feb 14 11:57:02 EST 2005
|
||||
FAQ-Version: 3.30
|
||||
Bash-Version: 3.0
|
||||
Last-Modified: Thu Apr 13 13:19:33 EDT 2006
|
||||
FAQ-Version: 3.33
|
||||
Bash-Version: 3.1
|
||||
URL: ftp://ftp.cwru.edu/pub/bash/FAQ
|
||||
Maintainer: chet@po.cwru.edu (Chet Ramey)
|
||||
|
||||
This is the Bash FAQ, version 3.30, for Bash version 3.0.
|
||||
This is the Bash FAQ, version 3.33, for Bash version 3.1.
|
||||
|
||||
This document contains a set of frequently-asked questions concerning
|
||||
Bash, the GNU Bourne-Again Shell. Bash is a freely-available command
|
||||
@@ -54,9 +53,9 @@ A10) What is the bash `posix mode'?
|
||||
|
||||
Section B: The latest version
|
||||
|
||||
B1) What's new in version 3.0?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.0 and
|
||||
bash-1.14.7?
|
||||
B1) What's new in version 3.1?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.1 and
|
||||
bash-2.05b?
|
||||
|
||||
Section C: Differences from other Unix shells
|
||||
|
||||
@@ -158,26 +157,26 @@ of Case Western Reserve University.
|
||||
|
||||
A2) What's the latest version?
|
||||
|
||||
The latest version is 3.0, first made available on 27 July, 2004.
|
||||
The latest version is 3.1, first made available on 09 December, 2005.
|
||||
|
||||
A3) Where can I get it?
|
||||
|
||||
Bash is the GNU project's shell, and so is available from the
|
||||
master GNU archive site, ftp.gnu.org, and its mirrors. The
|
||||
latest version is also available for FTP from ftp.cwru.edu.
|
||||
The following URLs tell how to get version 3.0:
|
||||
The following URLs tell how to get version 3.1:
|
||||
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-3.0.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.0.tar.gz
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-3.1.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.1.tar.gz
|
||||
|
||||
Formatted versions of the documentation are available with the URLs:
|
||||
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-3.0.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-doc-3.0.tar.gz
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-3.1.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-doc-3.1.tar.gz
|
||||
|
||||
Any patches for the current version are available with the URL:
|
||||
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.0-patches/
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.1-patches/
|
||||
|
||||
A4) On what machines will bash run?
|
||||
|
||||
@@ -208,10 +207,10 @@ of their CYGWIN project. For more information about the project, see
|
||||
http://www.cygwin.com/.
|
||||
|
||||
Cygnus originally ported bash-1.14.7, and that port was part of their
|
||||
early GNU-Win32 (the original name) releases. Cygnus has also done a
|
||||
port of bash-2.05b to the CYGWIN environment, and it is available as
|
||||
part of their current release. Bash-3.0 is currently being tested and
|
||||
should be available soon.
|
||||
early GNU-Win32 (the original name) releases. Cygnus has also done
|
||||
ports of bash-2.05b and bash-3.0 to the CYGWIN environment, and both
|
||||
are available as part of their current release. Bash-3.1 is currently
|
||||
being tested and should be available soon.
|
||||
|
||||
Bash-2.05b and later versions should require no local Cygnus changes to
|
||||
build and run under CYGWIN.
|
||||
@@ -233,7 +232,8 @@ ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/bsh204s.zip source
|
||||
Mark began to work with bash-2.05, but I don't know the current status.
|
||||
|
||||
Bash-3.0 compiles and runs with no modifications under Microsoft's Services
|
||||
for Unix (SFU), once known as Interix.
|
||||
for Unix (SFU), once known as Interix. I do not anticipate any problems
|
||||
with building bash-3.1.
|
||||
|
||||
A6) How can I build bash with gcc?
|
||||
|
||||
@@ -402,15 +402,25 @@ They are also listed in a section in the Bash Reference Manual
|
||||
|
||||
Section B: The latest version
|
||||
|
||||
B1) What's new in version 3.0?
|
||||
B1) What's new in version 3.1?
|
||||
|
||||
Bash-3.0 is the third major release of bash. The features introduced
|
||||
in the intermediate releases following bash-2.05 have been completed.
|
||||
Support for the bash debugger (a separate project) has been integrated.
|
||||
Bash-3.1 is the first maintenance release of the third major release of
|
||||
bash. It contains the following significant new features (see the manual
|
||||
page for complete descriptions and the CHANGES and NEWS files in the
|
||||
bash-3.1 distribution).
|
||||
|
||||
Bash-3.0 contains the following new features (see the manual page for
|
||||
complete descriptions and the CHANGES and NEWS files in the bash-3.0
|
||||
distribution):
|
||||
o Bash-3.1 may now be configured and built in a mode that enforces strict
|
||||
POSIX compliance.
|
||||
|
||||
o The `+=' assignment operator, which appends to the value of a string or
|
||||
array variable, has been implemented.
|
||||
|
||||
o It is now possible to ignore case when matching in contexts other than
|
||||
filename generation using the new `nocasematch' shell option.
|
||||
|
||||
A short feature history dating from Bash-2.0:
|
||||
|
||||
Bash-3.0 contained the following new features:
|
||||
|
||||
o Features to support the bash debugger have been implemented, and there
|
||||
is a new `extdebug' option to turn the non-default options on
|
||||
@@ -440,8 +450,6 @@ o The `jobs', `kill', and `wait' builtins now accept job control notation
|
||||
o The `gettext' package and libintl have been integrated, and the shell
|
||||
messages may be translated into other languages
|
||||
|
||||
A short feature history dating from Bash-2.0:
|
||||
|
||||
Bash-2.05b introduced the following new features:
|
||||
|
||||
o support for multibyte characters has been added to both bash and readline
|
||||
@@ -649,10 +657,10 @@ grammar tighter and smaller (66 reduce-reduce conflicts gone)
|
||||
lots of code now smaller and faster
|
||||
test suite greatly expanded
|
||||
|
||||
B2) Are there any user-visible incompatibilities between bash-3.0 and
|
||||
bash-1.14.7?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.1 and
|
||||
bash-2.05b?
|
||||
|
||||
There are a few incompatibilities between version 1.14.7 and version 3.0.
|
||||
There are a few incompatibilities between version 2.05b and version 3.1.
|
||||
They are detailed in the file COMPAT in the bash distribution. That file
|
||||
is not meant to be all-encompassing; send mail to bash-maintainers@gnu.org
|
||||
if if you find something that's not mentioned there.
|
||||
@@ -706,7 +714,7 @@ Things bash has that sh does not:
|
||||
read -e/-p/-a/-t/-n/-d/-s/-u,
|
||||
readonly -a/-f/name=value, trap -l, set +o,
|
||||
set -b/-m/-o option/-h/-p/-B/-C/-H/-P,
|
||||
unset -f/-v, ulimit -m/-p/-u,
|
||||
unset -f/-v, ulimit -i/-m/-p/-q/-u/-x,
|
||||
type -a/-p/-t/-f/-P, suspend -f, kill -n,
|
||||
test -o optname/s1 == s2/s1 < s2/s1 > s2/-nt/-ot/-ef/-O/-G/-S
|
||||
bash reads ~/.bashrc for interactive shells, $ENV for non-interactive
|
||||
@@ -735,11 +743,12 @@ Things bash has that sh does not:
|
||||
case-insensitive pattern matching and globbing
|
||||
variable assignments preceding commands affect only that command,
|
||||
even for builtins and functions
|
||||
posix mode
|
||||
posix mode and strict posix conformance
|
||||
redirection to /dev/fd/N, /dev/stdin, /dev/stdout, /dev/stderr,
|
||||
/dev/tcp/host/port, /dev/udp/host/port
|
||||
debugger support, including `caller' builtin and new variables
|
||||
RETURN trap
|
||||
the `+=' assignment operator
|
||||
|
||||
|
||||
Things sh has that bash does not:
|
||||
@@ -801,8 +810,8 @@ Things bash has or uses that ksh88 does not:
|
||||
set -o braceexpand/-o histexpand/-o interactive-comments/
|
||||
-o notify/-o physical/-o posix/-o hashall/-o onecmd/
|
||||
-h/-B/-C/-b/-H/-P, set +o, suspend, trap -l, type,
|
||||
typeset -a/-F/-p, ulimit -u, umask -S, alias -p, shopt,
|
||||
disown, printf, complete, compgen
|
||||
typeset -a/-F/-p, ulimit -i/-q/-u/-x, umask -S, alias -p,
|
||||
shopt, disown, printf, complete, compgen
|
||||
`!' csh-style history expansion
|
||||
POSIX.2-style globbing character classes
|
||||
POSIX.2-style globbing equivalence classes
|
||||
@@ -817,6 +826,7 @@ Things bash has or uses that ksh88 does not:
|
||||
RETURN trap
|
||||
Timestamps in history entries
|
||||
{x..y} brace expansion
|
||||
The `+=' assignment operator
|
||||
|
||||
Things ksh88 has or uses that bash does not:
|
||||
tracked aliases (alias -t)
|
||||
@@ -863,7 +873,6 @@ New things in ksh-93 not in bash-3.0:
|
||||
`fc' has been renamed to `hist'
|
||||
`.' can execute shell functions
|
||||
exit statuses between 0 and 255
|
||||
`+=' variable assignment operator
|
||||
FPATH and PATH mixing
|
||||
getopts -a
|
||||
-I invocation option
|
||||
@@ -897,6 +906,7 @@ New things in ksh-93 present in bash-3.0:
|
||||
command name completion
|
||||
ENV processed only for interactive shells
|
||||
set -o pipefail
|
||||
The `+=' assignment operator
|
||||
|
||||
Section D: Why does bash do some things differently than other Unix shells?
|
||||
|
||||
@@ -1120,9 +1130,8 @@ will try to write on a pipe without a reader. In that case, bash
|
||||
will print `Broken pipe' to stderr when ps is killed by a
|
||||
SIGPIPE.
|
||||
|
||||
You can build a version of bash that will not report SIGPIPE errors
|
||||
by uncommenting the definition of DONT_REPORT_SIGPIPE in the file
|
||||
config-top.h.
|
||||
As of bash-3.1, bash will not report SIGPIPE errors by default. You
|
||||
can build a version of bash that will report such errors.
|
||||
|
||||
E3) When I have terminal escape sequences in my prompt, why does bash
|
||||
wrap lines at the wrong column?
|
||||
@@ -1149,12 +1158,12 @@ simple calls to `read'. For example, piping a command's output
|
||||
into a `while' loop that repeatedly calls `read' will result in
|
||||
the same behavior.
|
||||
|
||||
Each element of a pipeline runs in a separate process, a child of
|
||||
the shell running the pipeline. A subprocess cannot affect its
|
||||
parent's environment. When the `read' command sets the variable
|
||||
to the input, that variable is set only in the subshell, not the
|
||||
parent shell. When the subshell exits, the value of the variable
|
||||
is lost.
|
||||
Each element of a pipeline, even a builtin or shell function,
|
||||
runs in a separate process, a child of the shell running the
|
||||
pipeline. A subprocess cannot affect its parent's environment.
|
||||
When the `read' command sets the variable to the input, that
|
||||
variable is set only in the subshell, not the parent shell. When
|
||||
the subshell exits, the value of the variable is lost.
|
||||
|
||||
Many pipelines that end with `read variable' can be converted
|
||||
into command substitutions, which will capture the output of
|
||||
@@ -1583,6 +1592,9 @@ this. These variables can be set in your .inputrc or using the bash
|
||||
The `set' commands between the single quotes may also be placed
|
||||
in ~/.inputrc.
|
||||
|
||||
The script examples/scripts.noah/meta.bash encapsulates the bind
|
||||
commands in a shell function.
|
||||
|
||||
G2) How do I write a function `x' to replace builtin command `x', but
|
||||
still invoke the command from within the function?
|
||||
|
||||
@@ -1756,13 +1768,9 @@ ftp.cwru.edu in the `pub/bash' directory.
|
||||
Cameron Newham and Bill Rosenblatt have written a book on bash, published
|
||||
by O'Reilly and Associates. The book is based on Bill Rosenblatt's Korn
|
||||
Shell book. The title is ``Learning the Bash Shell'', and the ISBN number
|
||||
is 1-56592-147-X. Look for it in fine bookstores near you. This book
|
||||
covers bash-1.14, but has an appendix describing some of the new features
|
||||
in bash-2.0.
|
||||
|
||||
A second edition of this book is available, published in January, 1998.
|
||||
The ISBN number is 1-56592-347-2. Look for it in the same fine bookstores
|
||||
or on the web.
|
||||
of the third edition, published in March, 2005, is 0-596-00965-8. Look for
|
||||
it in fine bookstores near you. This edition of the book has been updated
|
||||
to cover bash-3.0.
|
||||
|
||||
The GNU Bash Reference Manual has been published as a printed book by
|
||||
Network Theory Ltd (Paperback, ISBN: 0-9541617-7-7, Feb 2003). It covers
|
||||
@@ -1770,6 +1778,16 @@ bash-2.0 and is available from most online bookstores (see
|
||||
http://www.network-theory.co.uk/bash/manual/ for details). The publisher
|
||||
will donate $1 to the Free Software Foundation for each copy sold.
|
||||
|
||||
Arnold Robbins and Nelson Beebe have written ``Classic Shell Scripting'',
|
||||
published by O'Reilly. The first edition, with ISBN number 0-596-00595-4,
|
||||
was published in May, 2005.
|
||||
|
||||
Chris F. A. Johnson, a frequent contributor to comp.unix.shell and
|
||||
gnu.bash.bug, has written ``Shell Scripting Recipes: A Problem-Solution
|
||||
Approach,'' a new book on shell scripting, concentrating on features of
|
||||
the POSIX standard helpful to shell script writers. The first edition from
|
||||
Apress, with ISBN number 1-59059-471-1, was published in May, 2005.
|
||||
|
||||
H3) What's coming in future versions?
|
||||
|
||||
These are features I hope to include in a future version of bash.
|
||||
@@ -1788,16 +1806,15 @@ a bash programmer's guide with a chapter on creating loadable builtins
|
||||
a better loadable interface to perl with access to the shell builtins and
|
||||
variables (contributions gratefully accepted)
|
||||
ksh93-like `nameref' variables
|
||||
ksh93-like `+=' variable assignment operator
|
||||
ksh93-like `xx.yy' variables (including some of the .sh.* variables) and
|
||||
associated disipline functions
|
||||
Some of the new ksh93 pattern matching operators, like backreferencing
|
||||
|
||||
H5) When will the next release appear?
|
||||
|
||||
The next version will appear sometime in 2005. Never make predictions.
|
||||
The next version will appear sometime in 2006. Never make predictions.
|
||||
|
||||
This document is Copyright 1995-2004 by Chester Ramey.
|
||||
This document is Copyright 1995-2005 by Chester Ramey.
|
||||
|
||||
Permission is hereby granted, without written agreement and
|
||||
without license or royalty fees, to use, copy, and distribute
|
||||
|
||||
+75
-58
@@ -1,22 +1,21 @@
|
||||
Newsgroups: comp.unix.shell,comp.unix.questions,comp.answers,news.answers
|
||||
From: chet@po.cwru.edu (Chet Ramey)
|
||||
Subject: [gnu.bash.bug] BASH Frequently-Asked Questions (FAQ version 3.30)
|
||||
Subject: [gnu.bash.bug] BASH Frequently-Asked Questions (FAQ version 3.33)
|
||||
Organization: Case Western Reserve University
|
||||
Summary: A's to Q's about BASH, the Bourne-Again SHell
|
||||
Summary: As to Qs about BASH, the Bourne-Again SHell
|
||||
Reply-To: chet@po.cwru.edu
|
||||
Followup-To: poster
|
||||
Approved: news-answers-request@MIT.EDU
|
||||
|
||||
Archive-name: unix-faq/shell/bash
|
||||
Posting-Frequency: monthly
|
||||
Submitted-By: chet@po.cwru.edu (Chet Ramey)
|
||||
Last-Modified: Mon Feb 14 11:57:02 EST 2005
|
||||
FAQ-Version: 3.30
|
||||
Bash-Version: 3.0
|
||||
Last-Modified: Thu Apr 13 13:19:33 EDT 2006
|
||||
FAQ-Version: 3.33
|
||||
Bash-Version: 3.1
|
||||
URL: ftp://ftp.cwru.edu/pub/bash/FAQ
|
||||
Maintainer: chet@po.cwru.edu (Chet Ramey)
|
||||
|
||||
This is the Bash FAQ, version 3.30, for Bash version 3.0.
|
||||
This is the Bash FAQ, version 3.33, for Bash version 3.1.
|
||||
|
||||
This document contains a set of frequently-asked questions concerning
|
||||
Bash, the GNU Bourne-Again Shell. Bash is a freely-available command
|
||||
@@ -54,9 +53,9 @@ A10) What is the bash `posix mode'?
|
||||
|
||||
Section B: The latest version
|
||||
|
||||
B1) What's new in version 3.0?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.0 and
|
||||
bash-1.14.7?
|
||||
B1) What's new in version 3.1?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.1 and
|
||||
bash-2.05b?
|
||||
|
||||
Section C: Differences from other Unix shells
|
||||
|
||||
@@ -158,26 +157,26 @@ of Case Western Reserve University.
|
||||
|
||||
A2) What's the latest version?
|
||||
|
||||
The latest version is 3.0, first made available on 27 July, 2004.
|
||||
The latest version is 3.1, first made available on 09 December, 2005.
|
||||
|
||||
A3) Where can I get it?
|
||||
|
||||
Bash is the GNU project's shell, and so is available from the
|
||||
master GNU archive site, ftp.gnu.org, and its mirrors. The
|
||||
latest version is also available for FTP from ftp.cwru.edu.
|
||||
The following URLs tell how to get version 3.0:
|
||||
The following URLs tell how to get version 3.1:
|
||||
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-3.0.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.0.tar.gz
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-3.1.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.1.tar.gz
|
||||
|
||||
Formatted versions of the documentation are available with the URLs:
|
||||
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-3.0.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-doc-3.0.tar.gz
|
||||
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-3.1.tar.gz
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-doc-3.1.tar.gz
|
||||
|
||||
Any patches for the current version are available with the URL:
|
||||
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.0-patches/
|
||||
ftp://ftp.cwru.edu/pub/bash/bash-3.1-patches/
|
||||
|
||||
A4) On what machines will bash run?
|
||||
|
||||
@@ -208,10 +207,10 @@ of their CYGWIN project. For more information about the project, see
|
||||
http://www.cygwin.com/.
|
||||
|
||||
Cygnus originally ported bash-1.14.7, and that port was part of their
|
||||
early GNU-Win32 (the original name) releases. Cygnus has also done a
|
||||
port of bash-2.05b to the CYGWIN environment, and it is available as
|
||||
part of their current release. Bash-3.0 is currently being tested and
|
||||
should be available soon.
|
||||
early GNU-Win32 (the original name) releases. Cygnus has also done
|
||||
ports of bash-2.05b and bash-3.0 to the CYGWIN environment, and both
|
||||
are available as part of their current release. Bash-3.1 is currently
|
||||
being tested and should be available soon.
|
||||
|
||||
Bash-2.05b and later versions should require no local Cygnus changes to
|
||||
build and run under CYGWIN.
|
||||
@@ -233,7 +232,8 @@ ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/bsh204s.zip source
|
||||
Mark began to work with bash-2.05, but I don't know the current status.
|
||||
|
||||
Bash-3.0 compiles and runs with no modifications under Microsoft's Services
|
||||
for Unix (SFU), once known as Interix.
|
||||
for Unix (SFU), once known as Interix. I do not anticipate any problems
|
||||
with building bash-3.1.
|
||||
|
||||
A6) How can I build bash with gcc?
|
||||
|
||||
@@ -402,15 +402,25 @@ They are also listed in a section in the Bash Reference Manual
|
||||
|
||||
Section B: The latest version
|
||||
|
||||
B1) What's new in version 3.0?
|
||||
B1) What's new in version 3.1?
|
||||
|
||||
Bash-3.0 is the third major release of bash. The features introduced
|
||||
in the intermediate releases following bash-2.05 have been completed.
|
||||
Support for the bash debugger (a separate project) has been integrated.
|
||||
Bash-3.1 is the first maintenance release of the third major release of
|
||||
bash. It contains the following significant new features (see the manual
|
||||
page for complete descriptions and the CHANGES and NEWS files in the
|
||||
bash-3.1 distribution).
|
||||
|
||||
Bash-3.0 contains the following new features (see the manual page for
|
||||
complete descriptions and the CHANGES and NEWS files in the bash-3.0
|
||||
distribution):
|
||||
o Bash-3.1 may now be configured and built in a mode that enforces strict
|
||||
POSIX compliance.
|
||||
|
||||
o The `+=' assignment operator, which appends to the value of a string or
|
||||
array variable, has been implemented.
|
||||
|
||||
o It is now possible to ignore case when matching in contexts other than
|
||||
filename generation using the new `nocasematch' shell option.
|
||||
|
||||
A short feature history dating from Bash-2.0:
|
||||
|
||||
Bash-3.0 contained the following new features:
|
||||
|
||||
o Features to support the bash debugger have been implemented, and there
|
||||
is a new `extdebug' option to turn the non-default options on
|
||||
@@ -440,8 +450,6 @@ o The `jobs', `kill', and `wait' builtins now accept job control notation
|
||||
o The `gettext' package and libintl have been integrated, and the shell
|
||||
messages may be translated into other languages
|
||||
|
||||
A short feature history dating from Bash-2.0:
|
||||
|
||||
Bash-2.05b introduced the following new features:
|
||||
|
||||
o support for multibyte characters has been added to both bash and readline
|
||||
@@ -649,10 +657,10 @@ grammar tighter and smaller (66 reduce-reduce conflicts gone)
|
||||
lots of code now smaller and faster
|
||||
test suite greatly expanded
|
||||
|
||||
B2) Are there any user-visible incompatibilities between bash-3.0 and
|
||||
bash-1.14.7?
|
||||
B2) Are there any user-visible incompatibilities between bash-3.1 and
|
||||
bash-2.05b?
|
||||
|
||||
There are a few incompatibilities between version 1.14.7 and version 3.0.
|
||||
There are a few incompatibilities between version 2.05b and version 3.1.
|
||||
They are detailed in the file COMPAT in the bash distribution. That file
|
||||
is not meant to be all-encompassing; send mail to bash-maintainers@gnu.org
|
||||
if if you find something that's not mentioned there.
|
||||
@@ -706,7 +714,7 @@ Things bash has that sh does not:
|
||||
read -e/-p/-a/-t/-n/-d/-s/-u,
|
||||
readonly -a/-f/name=value, trap -l, set +o,
|
||||
set -b/-m/-o option/-h/-p/-B/-C/-H/-P,
|
||||
unset -f/-v, ulimit -m/-p/-u,
|
||||
unset -f/-v, ulimit -i/-m/-p/-q/-u/-x,
|
||||
type -a/-p/-t/-f/-P, suspend -f, kill -n,
|
||||
test -o optname/s1 == s2/s1 < s2/s1 > s2/-nt/-ot/-ef/-O/-G/-S
|
||||
bash reads ~/.bashrc for interactive shells, $ENV for non-interactive
|
||||
@@ -735,11 +743,12 @@ Things bash has that sh does not:
|
||||
case-insensitive pattern matching and globbing
|
||||
variable assignments preceding commands affect only that command,
|
||||
even for builtins and functions
|
||||
posix mode
|
||||
posix mode and strict posix conformance
|
||||
redirection to /dev/fd/N, /dev/stdin, /dev/stdout, /dev/stderr,
|
||||
/dev/tcp/host/port, /dev/udp/host/port
|
||||
debugger support, including `caller' builtin and new variables
|
||||
RETURN trap
|
||||
the `+=' assignment operator
|
||||
|
||||
|
||||
Things sh has that bash does not:
|
||||
@@ -801,8 +810,8 @@ Things bash has or uses that ksh88 does not:
|
||||
set -o braceexpand/-o histexpand/-o interactive-comments/
|
||||
-o notify/-o physical/-o posix/-o hashall/-o onecmd/
|
||||
-h/-B/-C/-b/-H/-P, set +o, suspend, trap -l, type,
|
||||
typeset -a/-F/-p, ulimit -u, umask -S, alias -p, shopt,
|
||||
disown, printf, complete, compgen
|
||||
typeset -a/-F/-p, ulimit -i/-q/-u/-x, umask -S, alias -p,
|
||||
shopt, disown, printf, complete, compgen
|
||||
`!' csh-style history expansion
|
||||
POSIX.2-style globbing character classes
|
||||
POSIX.2-style globbing equivalence classes
|
||||
@@ -817,6 +826,7 @@ Things bash has or uses that ksh88 does not:
|
||||
RETURN trap
|
||||
Timestamps in history entries
|
||||
{x..y} brace expansion
|
||||
The `+=' assignment operator
|
||||
|
||||
Things ksh88 has or uses that bash does not:
|
||||
tracked aliases (alias -t)
|
||||
@@ -863,7 +873,6 @@ New things in ksh-93 not in bash-3.0:
|
||||
`fc' has been renamed to `hist'
|
||||
`.' can execute shell functions
|
||||
exit statuses between 0 and 255
|
||||
`+=' variable assignment operator
|
||||
FPATH and PATH mixing
|
||||
getopts -a
|
||||
-I invocation option
|
||||
@@ -897,6 +906,7 @@ New things in ksh-93 present in bash-3.0:
|
||||
command name completion
|
||||
ENV processed only for interactive shells
|
||||
set -o pipefail
|
||||
The `+=' assignment operator
|
||||
|
||||
Section D: Why does bash do some things differently than other Unix shells?
|
||||
|
||||
@@ -1120,9 +1130,8 @@ will try to write on a pipe without a reader. In that case, bash
|
||||
will print `Broken pipe' to stderr when ps is killed by a
|
||||
SIGPIPE.
|
||||
|
||||
You can build a version of bash that will not report SIGPIPE errors
|
||||
by uncommenting the definition of DONT_REPORT_SIGPIPE in the file
|
||||
config-top.h.
|
||||
As of bash-3.1, bash will not report SIGPIPE errors by default. You
|
||||
can build a version of bash that will report such errors.
|
||||
|
||||
E3) When I have terminal escape sequences in my prompt, why does bash
|
||||
wrap lines at the wrong column?
|
||||
@@ -1149,12 +1158,12 @@ simple calls to `read'. For example, piping a command's output
|
||||
into a `while' loop that repeatedly calls `read' will result in
|
||||
the same behavior.
|
||||
|
||||
Each element of a pipeline runs in a separate process, a child of
|
||||
the shell running the pipeline. A subprocess cannot affect its
|
||||
parent's environment. When the `read' command sets the variable
|
||||
to the input, that variable is set only in the subshell, not the
|
||||
parent shell. When the subshell exits, the value of the variable
|
||||
is lost.
|
||||
Each element of a pipeline, even a builtin or shell function,
|
||||
runs in a separate process, a child of the shell running the
|
||||
pipeline. A subprocess cannot affect its parent's environment.
|
||||
When the `read' command sets the variable to the input, that
|
||||
variable is set only in the subshell, not the parent shell. When
|
||||
the subshell exits, the value of the variable is lost.
|
||||
|
||||
Many pipelines that end with `read variable' can be converted
|
||||
into command substitutions, which will capture the output of
|
||||
@@ -1583,6 +1592,9 @@ this. These variables can be set in your .inputrc or using the bash
|
||||
The `set' commands between the single quotes may also be placed
|
||||
in ~/.inputrc.
|
||||
|
||||
The script examples/scripts.noah/meta.bash encapsulates the bind
|
||||
commands in a shell function.
|
||||
|
||||
G2) How do I write a function `x' to replace builtin command `x', but
|
||||
still invoke the command from within the function?
|
||||
|
||||
@@ -1756,13 +1768,9 @@ ftp.cwru.edu in the `pub/bash' directory.
|
||||
Cameron Newham and Bill Rosenblatt have written a book on bash, published
|
||||
by O'Reilly and Associates. The book is based on Bill Rosenblatt's Korn
|
||||
Shell book. The title is ``Learning the Bash Shell'', and the ISBN number
|
||||
is 1-56592-147-X. Look for it in fine bookstores near you. This book
|
||||
covers bash-1.14, but has an appendix describing some of the new features
|
||||
in bash-2.0.
|
||||
|
||||
A second edition of this book is available, published in January, 1998.
|
||||
The ISBN number is 1-56592-347-2. Look for it in the same fine bookstores
|
||||
or on the web.
|
||||
of the third edition, published in March, 2005, is 0-596-00965-8. Look for
|
||||
it in fine bookstores near you. This edition of the book has been updated
|
||||
to cover bash-3.0.
|
||||
|
||||
The GNU Bash Reference Manual has been published as a printed book by
|
||||
Network Theory Ltd (Paperback, ISBN: 0-9541617-7-7, Feb 2003). It covers
|
||||
@@ -1770,6 +1778,16 @@ bash-2.0 and is available from most online bookstores (see
|
||||
http://www.network-theory.co.uk/bash/manual/ for details). The publisher
|
||||
will donate $1 to the Free Software Foundation for each copy sold.
|
||||
|
||||
Arnold Robbins and Nelson Beebe have written ``Classic Shell Scripting'',
|
||||
published by O'Reilly. The first edition, with ISBN number 0-596-00595-4,
|
||||
was published in May, 2005.
|
||||
|
||||
Chris F. A. Johnson, a frequent contributor to comp.unix.shell and
|
||||
gnu.bash.bug, has written ``Shell Scripting Recipes: A Problem-Solution
|
||||
Approach,'' a new book on shell scripting, concentrating on features of
|
||||
the POSIX standard helpful to shell script writers. The first edition from
|
||||
Apress, with ISBN number 1-59059-471-1, was published in May, 2005.
|
||||
|
||||
H3) What's coming in future versions?
|
||||
|
||||
These are features I hope to include in a future version of bash.
|
||||
@@ -1788,16 +1806,15 @@ a bash programmer's guide with a chapter on creating loadable builtins
|
||||
a better loadable interface to perl with access to the shell builtins and
|
||||
variables (contributions gratefully accepted)
|
||||
ksh93-like `nameref' variables
|
||||
ksh93-like `+=' variable assignment operator
|
||||
ksh93-like `xx.yy' variables (including some of the .sh.* variables) and
|
||||
associated disipline functions
|
||||
Some of the new ksh93 pattern matching operators, like backreferencing
|
||||
|
||||
H5) When will the next release appear?
|
||||
|
||||
The next version will appear sometime in 2005. Never make predictions.
|
||||
The next version will appear sometime in 2006. Never make predictions.
|
||||
|
||||
This document is Copyright 1995-2004 by Chester Ramey.
|
||||
This document is Copyright 1995-2005 by Chester Ramey.
|
||||
|
||||
Permission is hereby granted, without written agreement and
|
||||
without license or royalty fees, to use, copy, and distribute
|
||||
|
||||
+3
-3
@@ -1,9 +1,9 @@
|
||||
Archive-name: unix-faq/shell/bash
|
||||
Posting-Frequency: monthly
|
||||
Submitted-By: chet@po.cwru.edu (Chet Ramey)
|
||||
Last-Modified: Mon Feb 14 11:57:02 EST 2005
|
||||
FAQ-Version: 3.30
|
||||
Bash-Version: 3.0
|
||||
Last-Modified: Thu Apr 13 13:19:33 EDT 2006
|
||||
FAQ-Version: 3.33
|
||||
Bash-Version: 3.1
|
||||
URL: ftp://ftp.cwru.edu/pub/bash/FAQ
|
||||
Maintainer: chet@po.cwru.edu (Chet Ramey)
|
||||
|
||||
|
||||
Reference in New Issue
Block a user