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https://https.git.savannah.gnu.org/git/bash.git
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portability and compatibility fixes
This commit is contained in:
Chet Ramey
@@ -552,6 +552,27 @@ compat50 (set using BASH_COMPAT)
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suppresses that message if -l is supplied
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compat51 (set using BASH_COMPAT)
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- The `unset' builtin will unset the array a given an argument like
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`a[@]'. Bash-5.2 will unset an element with key `@' (associative
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arrays) or remove all the elements without unsetting the array
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(indexed arrays)
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- arithmetic commands ( ((...)) ) and the expressions in an arithmetic
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for statement can be expanded more than once
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- expressions used as arguments to arithmetic operators in the [[
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conditional command can be expanded more than once
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- the expressions in substring parameter brace expansion can be
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expanded more than once
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- the expressions in the $(( ... )) word expansion can be expanded
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more than once
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- arithmetic expressions used as indexed array subscripts can be
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expanded more than once;
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- `test -v', when given an argument of A[@], where A is an existing
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associative array, will return true if the array has any set
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elements. Bash-5.2 will look for a key named `@';
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- the ${param[:]=value} word expansion will return VALUE, before any
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variable-specific transformations have been performed (e.g.,
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converting to lowercase). Bash-5.2 will return the final value
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assigned to the variable, as POSIX specifies
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-------------------------------------------------------------------------------
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@@ -2578,3 +2578,32 @@ subst.c
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doc/bashref.texi
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- --enable-translatable-strings: document new configuration option
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12/2
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----
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subst.c
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- verify_substring_values: now that the default compatibility level is
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52, and the Q_ARITH code is enabled, make the EXP_EXPANDED flag for
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evalexp() dependent on the compatibility level
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- param_expand: arithmetic substitution: make EXP_EXPANDED flag
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for evalexp() dependent on the compatibility level
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- expand_word_internal: don't call expand_array_subscript if the
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shell compatibility level is 51 or below (Q_ARITH)
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test.c
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- test_unop: if the shell compatibility level is > 51, using [@] with
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an existing associative array will report on a key of `@'
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arrayfunc.c
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- array_expand_index: if the compatibility level is > 51, Q_ARITH is
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used and we don't pass EXP_EXPANDED to evalexp()
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COMPAT,doc/bashref.texi
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- shell compatibility mode: document effects of setting the
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compatibility mode to 51
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12/3
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----
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lib/malloc/malloc.c
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- mremap: only use if MREMAP_MAYMOVE is defined, since we use the Linux
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version of the function signature
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@@ -1301,11 +1301,7 @@ array_expand_index (var, s, len, flags)
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#endif
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savecmd = this_command_name;
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this_command_name = (char *)NULL;
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#if 0 /* TAG:bash-5.2 */
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eflag = (shell_compatibility_level > 51) ? 0 : EXP_EXPANDED;
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#else
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eflag = 0;
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#endif
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val = evalexp (t, eflag, &expok); /* XXX - was 0 but we expanded exp already */
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this_command_name = savecmd;
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if (t != exp)
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+1
-1
@@ -1088,7 +1088,7 @@ set_expand_once (nval, uwp)
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int oa;
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oa = assoc_expand_once;
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if (shell_compatibility_level > 51)
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if (shell_compatibility_level > 51) /* XXX - internal */
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{
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if (uwp)
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unwind_protect_int (assoc_expand_once);
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+1
-1
@@ -918,7 +918,7 @@ set_assoc_expand (option_name, mode)
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char *option_name;
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int mode;
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{
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#if 0 /* TAG: bash-5.2, fix shell_compatibility_level test */
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#if 0 /* leave this disabled */
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if (shell_compatibility_level <= 51)
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#endif
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assoc_expand_once = expand_once_flag;
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@@ -0,0 +1,27 @@
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o The `unset' builtin will unset the array a given an argument like `a[@]'.
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Bash-5.2 will unset an element with key `@' (associative arrays) or remove
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all the elements without unsetting the array (indexed arrays);
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o arithmetic commands ( ((...)) ) and the expressions in an arithmetic for
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statement can be expanded more than once;
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o expressions used as arguments to arithmetic operators in the [[ conditional
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command can be expanded more than once;
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o the expressions in substring parameter brace expansion can be
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expanded more than once;
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o the expressions in the $(( ... )) word expansion can be expanded
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more than once;
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o arithmetic expressions used as indexed array subscripts can be
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expanded more than once;
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o `test -v', when given an argument of A[@], where A is an existing
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associative array, will return true if the array has any set elements.
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Bash-5.2 will look for a key named `@';
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o the ${param[:]=value} word expansion will return VALUE, before any
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variable-specific transformations have been performed (e.g., converting
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to lowercase). Bash-5.2 will return the final value assigned to the
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variable.
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+162
-140
@@ -1,9 +1,9 @@
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This is bash.info, produced by makeinfo version 6.8 from bashref.texi.
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This text is a brief description of the features that are present in the
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Bash shell (version 5.2, 22 November 2021).
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Bash shell (version 5.2, 2 December 2021).
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This is Edition 5.2, last updated 22 November 2021, of 'The GNU Bash
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This is Edition 5.2, last updated 2 December 2021, of 'The GNU Bash
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Reference Manual', for 'Bash', Version 5.2.
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Copyright (C) 1988-2021 Free Software Foundation, Inc.
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@@ -26,10 +26,10 @@ Bash Features
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*************
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This text is a brief description of the features that are present in the
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Bash shell (version 5.2, 22 November 2021). The Bash home page is
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Bash shell (version 5.2, 2 December 2021). The Bash home page is
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<http://www.gnu.org/software/bash/>.
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This is Edition 5.2, last updated 22 November 2021, of 'The GNU Bash
|
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This is Edition 5.2, last updated 2 December 2021, of 'The GNU Bash
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Reference Manual', for 'Bash', Version 5.2.
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Bash contains features that appear in other popular shells, and some
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@@ -7349,10 +7349,28 @@ required for bash-5.1 and later versions.
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suppresses that message when the '-l' option is supplied.
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'compat51 (set using BASH_COMPAT)'
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* The 'unset' builtin treats attempts to unset array subscripts
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'@' and '*' differently depending on whether the array is
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indexed or associative, and differently than in previous
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versions.
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* The 'unset' builtin will unset the array 'a' given an argument
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like 'a[@]'. Bash-5.2 will unset an element with key '@'
|
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(associative arrays) or remove all the elements without
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unsetting the array (indexed arrays)
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* arithmetic commands ( ((...)) ) and the expressions in an
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arithmetic for statement can be expanded more than once
|
||||
* expressions used as arguments to arithmetic operators in the
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'[[' conditional command can be expanded more than once
|
||||
* the expressions in substring parameter brace expansion can be
|
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expanded more than once
|
||||
* the expressions in the $(( ... )) word expansion can be
|
||||
expanded more than once
|
||||
* arithmetic expressions used as indexed array subscripts can be
|
||||
expanded more than once
|
||||
* 'test -v', when given an argument of 'A[@]', where A is an
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existing associative array, will return true if the array has
|
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any set elements. Bash-5.2 will look for and report on a key
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named '@'
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* the ${PARAMETER[:]=VALUE} word expansion will return VALUE,
|
||||
before any variable-specific transformations have been
|
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performed (e.g., converting to lowercase). Bash-5.2 will
|
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return the final value assigned to the variable.
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File: bash.info, Node: Job Control, Next: Command Line Editing, Prev: Bash Features, Up: Top
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@@ -10719,6 +10737,10 @@ does not provide the necessary support.
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'--enable-strict-posix-default'
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Make Bash POSIX-conformant by default (*note Bash POSIX Mode::).
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'--enable-translatable-strings'
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Enable support for '$"STRING"' translatable strings (*note Locale
|
||||
Translation::).
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'--enable-usg-echo-default'
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A synonym for '--enable-xpg-echo-default'.
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@@ -12392,138 +12414,138 @@ D.5 Concept Index
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Tag Table:
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||||
Node: Top894
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||||
Node: Introduction2811
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||||
Node: What is Bash?3024
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||||
Node: What is a shell?4135
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||||
Node: Definitions6670
|
||||
Node: Basic Shell Features9618
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||||
Node: Shell Syntax10834
|
||||
Node: Shell Operation11857
|
||||
Node: Quoting13147
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||||
Node: Escape Character14448
|
||||
Node: Single Quotes14930
|
||||
Node: Double Quotes15275
|
||||
Node: ANSI-C Quoting16550
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||||
Node: Locale Translation17857
|
||||
Node: Creating Internationalized Scripts19165
|
||||
Node: Comments23279
|
||||
Node: Shell Commands23894
|
||||
Node: Reserved Words24829
|
||||
Node: Simple Commands25582
|
||||
Node: Pipelines26233
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||||
Node: Lists29189
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||||
Node: Compound Commands30981
|
||||
Node: Looping Constructs31990
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||||
Node: Conditional Constructs34482
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||||
Node: Command Grouping48823
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||||
Node: Coprocesses50298
|
||||
Node: GNU Parallel52958
|
||||
Node: Shell Functions53872
|
||||
Node: Shell Parameters61160
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||||
Node: Positional Parameters65545
|
||||
Node: Special Parameters66444
|
||||
Node: Shell Expansions69655
|
||||
Node: Brace Expansion71779
|
||||
Node: Tilde Expansion74510
|
||||
Node: Shell Parameter Expansion77128
|
||||
Node: Command Substitution94991
|
||||
Node: Arithmetic Expansion96343
|
||||
Node: Process Substitution97308
|
||||
Node: Word Splitting98425
|
||||
Node: Filename Expansion100366
|
||||
Node: Pattern Matching102963
|
||||
Node: Quote Removal107568
|
||||
Node: Redirections107860
|
||||
Node: Executing Commands117517
|
||||
Node: Simple Command Expansion118184
|
||||
Node: Command Search and Execution120291
|
||||
Node: Command Execution Environment122666
|
||||
Node: Environment125698
|
||||
Node: Exit Status127358
|
||||
Node: Signals129139
|
||||
Node: Shell Scripts132585
|
||||
Node: Shell Builtin Commands135609
|
||||
Node: Bourne Shell Builtins137644
|
||||
Node: Bash Builtins159102
|
||||
Node: Modifying Shell Behavior189955
|
||||
Node: The Set Builtin190297
|
||||
Node: The Shopt Builtin200836
|
||||
Node: Special Builtins216547
|
||||
Node: Shell Variables217523
|
||||
Node: Bourne Shell Variables217957
|
||||
Node: Bash Variables220058
|
||||
Node: Bash Features252870
|
||||
Node: Invoking Bash253880
|
||||
Node: Bash Startup Files259890
|
||||
Node: Interactive Shells264990
|
||||
Node: What is an Interactive Shell?265397
|
||||
Node: Is this Shell Interactive?266043
|
||||
Node: Interactive Shell Behavior266855
|
||||
Node: Bash Conditional Expressions270481
|
||||
Node: Shell Arithmetic275120
|
||||
Node: Aliases278061
|
||||
Node: Arrays280671
|
||||
Node: The Directory Stack286915
|
||||
Node: Directory Stack Builtins287696
|
||||
Node: Controlling the Prompt291953
|
||||
Node: The Restricted Shell294915
|
||||
Node: Bash POSIX Mode297522
|
||||
Node: Shell Compatibility Mode308792
|
||||
Node: Job Control315708
|
||||
Node: Job Control Basics316165
|
||||
Node: Job Control Builtins321164
|
||||
Node: Job Control Variables326561
|
||||
Node: Command Line Editing327714
|
||||
Node: Introduction and Notation329382
|
||||
Node: Readline Interaction331002
|
||||
Node: Readline Bare Essentials332190
|
||||
Node: Readline Movement Commands333970
|
||||
Node: Readline Killing Commands334927
|
||||
Node: Readline Arguments336842
|
||||
Node: Searching337883
|
||||
Node: Readline Init File340066
|
||||
Node: Readline Init File Syntax341324
|
||||
Node: Conditional Init Constructs362809
|
||||
Node: Sample Init File367002
|
||||
Node: Bindable Readline Commands370123
|
||||
Node: Commands For Moving371324
|
||||
Node: Commands For History373372
|
||||
Node: Commands For Text378363
|
||||
Node: Commands For Killing382009
|
||||
Node: Numeric Arguments385039
|
||||
Node: Commands For Completion386175
|
||||
Node: Keyboard Macros390363
|
||||
Node: Miscellaneous Commands391047
|
||||
Node: Readline vi Mode396983
|
||||
Node: Programmable Completion397887
|
||||
Node: Programmable Completion Builtins405664
|
||||
Node: A Programmable Completion Example416356
|
||||
Node: Using History Interactively421600
|
||||
Node: Bash History Facilities422281
|
||||
Node: Bash History Builtins425283
|
||||
Node: History Interaction430288
|
||||
Node: Event Designators433905
|
||||
Node: Word Designators435256
|
||||
Node: Modifiers437013
|
||||
Node: Installing Bash438821
|
||||
Node: Basic Installation439955
|
||||
Node: Compilers and Options443674
|
||||
Node: Compiling For Multiple Architectures444412
|
||||
Node: Installation Names446102
|
||||
Node: Specifying the System Type448208
|
||||
Node: Sharing Defaults448921
|
||||
Node: Operation Controls449591
|
||||
Node: Optional Features450546
|
||||
Node: Reporting Bugs461636
|
||||
Node: Major Differences From The Bourne Shell462908
|
||||
Node: GNU Free Documentation License479755
|
||||
Node: Indexes504929
|
||||
Node: Builtin Index505380
|
||||
Node: Reserved Word Index512204
|
||||
Node: Variable Index514649
|
||||
Node: Function Index531138
|
||||
Node: Concept Index544919
|
||||
Node: Top892
|
||||
Node: Introduction2807
|
||||
Node: What is Bash?3020
|
||||
Node: What is a shell?4131
|
||||
Node: Definitions6666
|
||||
Node: Basic Shell Features9614
|
||||
Node: Shell Syntax10830
|
||||
Node: Shell Operation11853
|
||||
Node: Quoting13143
|
||||
Node: Escape Character14444
|
||||
Node: Single Quotes14926
|
||||
Node: Double Quotes15271
|
||||
Node: ANSI-C Quoting16546
|
||||
Node: Locale Translation17853
|
||||
Node: Creating Internationalized Scripts19161
|
||||
Node: Comments23275
|
||||
Node: Shell Commands23890
|
||||
Node: Reserved Words24825
|
||||
Node: Simple Commands25578
|
||||
Node: Pipelines26229
|
||||
Node: Lists29185
|
||||
Node: Compound Commands30977
|
||||
Node: Looping Constructs31986
|
||||
Node: Conditional Constructs34478
|
||||
Node: Command Grouping48819
|
||||
Node: Coprocesses50294
|
||||
Node: GNU Parallel52954
|
||||
Node: Shell Functions53868
|
||||
Node: Shell Parameters61156
|
||||
Node: Positional Parameters65541
|
||||
Node: Special Parameters66440
|
||||
Node: Shell Expansions69651
|
||||
Node: Brace Expansion71775
|
||||
Node: Tilde Expansion74506
|
||||
Node: Shell Parameter Expansion77124
|
||||
Node: Command Substitution94987
|
||||
Node: Arithmetic Expansion96339
|
||||
Node: Process Substitution97304
|
||||
Node: Word Splitting98421
|
||||
Node: Filename Expansion100362
|
||||
Node: Pattern Matching102959
|
||||
Node: Quote Removal107564
|
||||
Node: Redirections107856
|
||||
Node: Executing Commands117513
|
||||
Node: Simple Command Expansion118180
|
||||
Node: Command Search and Execution120287
|
||||
Node: Command Execution Environment122662
|
||||
Node: Environment125694
|
||||
Node: Exit Status127354
|
||||
Node: Signals129135
|
||||
Node: Shell Scripts132581
|
||||
Node: Shell Builtin Commands135605
|
||||
Node: Bourne Shell Builtins137640
|
||||
Node: Bash Builtins159098
|
||||
Node: Modifying Shell Behavior189951
|
||||
Node: The Set Builtin190293
|
||||
Node: The Shopt Builtin200832
|
||||
Node: Special Builtins216543
|
||||
Node: Shell Variables217519
|
||||
Node: Bourne Shell Variables217953
|
||||
Node: Bash Variables220054
|
||||
Node: Bash Features252866
|
||||
Node: Invoking Bash253876
|
||||
Node: Bash Startup Files259886
|
||||
Node: Interactive Shells264986
|
||||
Node: What is an Interactive Shell?265393
|
||||
Node: Is this Shell Interactive?266039
|
||||
Node: Interactive Shell Behavior266851
|
||||
Node: Bash Conditional Expressions270477
|
||||
Node: Shell Arithmetic275116
|
||||
Node: Aliases278057
|
||||
Node: Arrays280667
|
||||
Node: The Directory Stack286911
|
||||
Node: Directory Stack Builtins287692
|
||||
Node: Controlling the Prompt291949
|
||||
Node: The Restricted Shell294911
|
||||
Node: Bash POSIX Mode297518
|
||||
Node: Shell Compatibility Mode308788
|
||||
Node: Job Control316814
|
||||
Node: Job Control Basics317271
|
||||
Node: Job Control Builtins322270
|
||||
Node: Job Control Variables327667
|
||||
Node: Command Line Editing328820
|
||||
Node: Introduction and Notation330488
|
||||
Node: Readline Interaction332108
|
||||
Node: Readline Bare Essentials333296
|
||||
Node: Readline Movement Commands335076
|
||||
Node: Readline Killing Commands336033
|
||||
Node: Readline Arguments337948
|
||||
Node: Searching338989
|
||||
Node: Readline Init File341172
|
||||
Node: Readline Init File Syntax342430
|
||||
Node: Conditional Init Constructs363915
|
||||
Node: Sample Init File368108
|
||||
Node: Bindable Readline Commands371229
|
||||
Node: Commands For Moving372430
|
||||
Node: Commands For History374478
|
||||
Node: Commands For Text379469
|
||||
Node: Commands For Killing383115
|
||||
Node: Numeric Arguments386145
|
||||
Node: Commands For Completion387281
|
||||
Node: Keyboard Macros391469
|
||||
Node: Miscellaneous Commands392153
|
||||
Node: Readline vi Mode398089
|
||||
Node: Programmable Completion398993
|
||||
Node: Programmable Completion Builtins406770
|
||||
Node: A Programmable Completion Example417462
|
||||
Node: Using History Interactively422706
|
||||
Node: Bash History Facilities423387
|
||||
Node: Bash History Builtins426389
|
||||
Node: History Interaction431394
|
||||
Node: Event Designators435011
|
||||
Node: Word Designators436362
|
||||
Node: Modifiers438119
|
||||
Node: Installing Bash439927
|
||||
Node: Basic Installation441061
|
||||
Node: Compilers and Options444780
|
||||
Node: Compiling For Multiple Architectures445518
|
||||
Node: Installation Names447208
|
||||
Node: Specifying the System Type449314
|
||||
Node: Sharing Defaults450027
|
||||
Node: Operation Controls450697
|
||||
Node: Optional Features451652
|
||||
Node: Reporting Bugs462867
|
||||
Node: Major Differences From The Bourne Shell464139
|
||||
Node: GNU Free Documentation License480986
|
||||
Node: Indexes506160
|
||||
Node: Builtin Index506611
|
||||
Node: Reserved Word Index513435
|
||||
Node: Variable Index515880
|
||||
Node: Function Index532369
|
||||
Node: Concept Index546150
|
||||
|
||||
End Tag Table
|
||||
|
||||
|
||||
+158
-140
@@ -2,9 +2,9 @@ This is bashref.info, produced by makeinfo version 6.8 from
|
||||
bashref.texi.
|
||||
|
||||
This text is a brief description of the features that are present in the
|
||||
Bash shell (version 5.2, 22 November 2021).
|
||||
Bash shell (version 5.2, 2 December 2021).
|
||||
|
||||
This is Edition 5.2, last updated 22 November 2021, of 'The GNU Bash
|
||||
This is Edition 5.2, last updated 2 December 2021, of 'The GNU Bash
|
||||
Reference Manual', for 'Bash', Version 5.2.
|
||||
|
||||
Copyright (C) 1988-2021 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 5.2, 22 November 2021). The Bash home page is
|
||||
Bash shell (version 5.2, 2 December 2021). The Bash home page is
|
||||
<http://www.gnu.org/software/bash/>.
|
||||
|
||||
This is Edition 5.2, last updated 22 November 2021, of 'The GNU Bash
|
||||
This is Edition 5.2, last updated 2 December 2021, of 'The GNU Bash
|
||||
Reference Manual', for 'Bash', Version 5.2.
|
||||
|
||||
Bash contains features that appear in other popular shells, and some
|
||||
@@ -7350,10 +7350,28 @@ required for bash-5.1 and later versions.
|
||||
suppresses that message when the '-l' option is supplied.
|
||||
|
||||
'compat51 (set using BASH_COMPAT)'
|
||||
* The 'unset' builtin treats attempts to unset array subscripts
|
||||
'@' and '*' differently depending on whether the array is
|
||||
indexed or associative, and differently than in previous
|
||||
versions.
|
||||
* The 'unset' builtin will unset the array 'a' given an argument
|
||||
like 'a[@]'. Bash-5.2 will unset an element with key '@'
|
||||
(associative arrays) or remove all the elements without
|
||||
unsetting the array (indexed arrays)
|
||||
* arithmetic commands ( ((...)) ) and the expressions in an
|
||||
arithmetic for statement can be expanded more than once
|
||||
* expressions used as arguments to arithmetic operators in the
|
||||
'[[' conditional command can be expanded more than once
|
||||
* the expressions in substring parameter brace expansion can be
|
||||
expanded more than once
|
||||
* the expressions in the $(( ... )) word expansion can be
|
||||
expanded more than once
|
||||
* arithmetic expressions used as indexed array subscripts can be
|
||||
expanded more than once
|
||||
* 'test -v', when given an argument of 'A[@]', where A is an
|
||||
existing associative array, will return true if the array has
|
||||
any set elements. Bash-5.2 will look for and report on a key
|
||||
named '@'
|
||||
* the ${PARAMETER[:]=VALUE} word expansion will return VALUE,
|
||||
before any variable-specific transformations have been
|
||||
performed (e.g., converting to lowercase). Bash-5.2 will
|
||||
return the final value assigned to the variable.
|
||||
|
||||
|
||||
File: bashref.info, Node: Job Control, Next: Command Line Editing, Prev: Bash Features, Up: Top
|
||||
@@ -12397,138 +12415,138 @@ D.5 Concept Index
|
||||
|
||||
|
||||
Tag Table:
|
||||
Node: Top897
|
||||
Node: Introduction2817
|
||||
Node: What is Bash?3033
|
||||
Node: What is a shell?4147
|
||||
Node: Definitions6685
|
||||
Node: Basic Shell Features9636
|
||||
Node: Shell Syntax10855
|
||||
Node: Shell Operation11881
|
||||
Node: Quoting13174
|
||||
Node: Escape Character14478
|
||||
Node: Single Quotes14963
|
||||
Node: Double Quotes15311
|
||||
Node: ANSI-C Quoting16589
|
||||
Node: Locale Translation17899
|
||||
Node: Creating Internationalized Scripts19210
|
||||
Node: Comments23327
|
||||
Node: Shell Commands23945
|
||||
Node: Reserved Words24883
|
||||
Node: Simple Commands25639
|
||||
Node: Pipelines26293
|
||||
Node: Lists29252
|
||||
Node: Compound Commands31047
|
||||
Node: Looping Constructs32059
|
||||
Node: Conditional Constructs34554
|
||||
Node: Command Grouping48898
|
||||
Node: Coprocesses50376
|
||||
Node: GNU Parallel53039
|
||||
Node: Shell Functions53956
|
||||
Node: Shell Parameters61247
|
||||
Node: Positional Parameters65635
|
||||
Node: Special Parameters66537
|
||||
Node: Shell Expansions69751
|
||||
Node: Brace Expansion71878
|
||||
Node: Tilde Expansion74612
|
||||
Node: Shell Parameter Expansion77233
|
||||
Node: Command Substitution95099
|
||||
Node: Arithmetic Expansion96454
|
||||
Node: Process Substitution97422
|
||||
Node: Word Splitting98542
|
||||
Node: Filename Expansion100486
|
||||
Node: Pattern Matching103086
|
||||
Node: Quote Removal107694
|
||||
Node: Redirections107989
|
||||
Node: Executing Commands117649
|
||||
Node: Simple Command Expansion118319
|
||||
Node: Command Search and Execution120429
|
||||
Node: Command Execution Environment122807
|
||||
Node: Environment125842
|
||||
Node: Exit Status127505
|
||||
Node: Signals129289
|
||||
Node: Shell Scripts132738
|
||||
Node: Shell Builtin Commands135765
|
||||
Node: Bourne Shell Builtins137803
|
||||
Node: Bash Builtins159264
|
||||
Node: Modifying Shell Behavior190120
|
||||
Node: The Set Builtin190465
|
||||
Node: The Shopt Builtin201007
|
||||
Node: Special Builtins216721
|
||||
Node: Shell Variables217700
|
||||
Node: Bourne Shell Variables218137
|
||||
Node: Bash Variables220241
|
||||
Node: Bash Features253056
|
||||
Node: Invoking Bash254069
|
||||
Node: Bash Startup Files260082
|
||||
Node: Interactive Shells265185
|
||||
Node: What is an Interactive Shell?265595
|
||||
Node: Is this Shell Interactive?266244
|
||||
Node: Interactive Shell Behavior267059
|
||||
Node: Bash Conditional Expressions270688
|
||||
Node: Shell Arithmetic275330
|
||||
Node: Aliases278274
|
||||
Node: Arrays280887
|
||||
Node: The Directory Stack287134
|
||||
Node: Directory Stack Builtins287918
|
||||
Node: Controlling the Prompt292178
|
||||
Node: The Restricted Shell295143
|
||||
Node: Bash POSIX Mode297753
|
||||
Node: Shell Compatibility Mode309026
|
||||
Node: Job Control315945
|
||||
Node: Job Control Basics316405
|
||||
Node: Job Control Builtins321407
|
||||
Node: Job Control Variables326807
|
||||
Node: Command Line Editing327963
|
||||
Node: Introduction and Notation329634
|
||||
Node: Readline Interaction331257
|
||||
Node: Readline Bare Essentials332448
|
||||
Node: Readline Movement Commands334231
|
||||
Node: Readline Killing Commands335191
|
||||
Node: Readline Arguments337109
|
||||
Node: Searching338153
|
||||
Node: Readline Init File340339
|
||||
Node: Readline Init File Syntax341600
|
||||
Node: Conditional Init Constructs363088
|
||||
Node: Sample Init File367284
|
||||
Node: Bindable Readline Commands370408
|
||||
Node: Commands For Moving371612
|
||||
Node: Commands For History373663
|
||||
Node: Commands For Text378657
|
||||
Node: Commands For Killing382306
|
||||
Node: Numeric Arguments385339
|
||||
Node: Commands For Completion386478
|
||||
Node: Keyboard Macros390669
|
||||
Node: Miscellaneous Commands391356
|
||||
Node: Readline vi Mode397295
|
||||
Node: Programmable Completion398202
|
||||
Node: Programmable Completion Builtins405982
|
||||
Node: A Programmable Completion Example416677
|
||||
Node: Using History Interactively421924
|
||||
Node: Bash History Facilities422608
|
||||
Node: Bash History Builtins425613
|
||||
Node: History Interaction430621
|
||||
Node: Event Designators434241
|
||||
Node: Word Designators435595
|
||||
Node: Modifiers437355
|
||||
Node: Installing Bash439166
|
||||
Node: Basic Installation440303
|
||||
Node: Compilers and Options444025
|
||||
Node: Compiling For Multiple Architectures444766
|
||||
Node: Installation Names446459
|
||||
Node: Specifying the System Type448568
|
||||
Node: Sharing Defaults449284
|
||||
Node: Operation Controls449957
|
||||
Node: Optional Features450915
|
||||
Node: Reporting Bugs462133
|
||||
Node: Major Differences From The Bourne Shell463408
|
||||
Node: GNU Free Documentation License480258
|
||||
Node: Indexes505435
|
||||
Node: Builtin Index505889
|
||||
Node: Reserved Word Index512716
|
||||
Node: Variable Index515164
|
||||
Node: Function Index531656
|
||||
Node: Concept Index545440
|
||||
Node: Top895
|
||||
Node: Introduction2813
|
||||
Node: What is Bash?3029
|
||||
Node: What is a shell?4143
|
||||
Node: Definitions6681
|
||||
Node: Basic Shell Features9632
|
||||
Node: Shell Syntax10851
|
||||
Node: Shell Operation11877
|
||||
Node: Quoting13170
|
||||
Node: Escape Character14474
|
||||
Node: Single Quotes14959
|
||||
Node: Double Quotes15307
|
||||
Node: ANSI-C Quoting16585
|
||||
Node: Locale Translation17895
|
||||
Node: Creating Internationalized Scripts19206
|
||||
Node: Comments23323
|
||||
Node: Shell Commands23941
|
||||
Node: Reserved Words24879
|
||||
Node: Simple Commands25635
|
||||
Node: Pipelines26289
|
||||
Node: Lists29248
|
||||
Node: Compound Commands31043
|
||||
Node: Looping Constructs32055
|
||||
Node: Conditional Constructs34550
|
||||
Node: Command Grouping48894
|
||||
Node: Coprocesses50372
|
||||
Node: GNU Parallel53035
|
||||
Node: Shell Functions53952
|
||||
Node: Shell Parameters61243
|
||||
Node: Positional Parameters65631
|
||||
Node: Special Parameters66533
|
||||
Node: Shell Expansions69747
|
||||
Node: Brace Expansion71874
|
||||
Node: Tilde Expansion74608
|
||||
Node: Shell Parameter Expansion77229
|
||||
Node: Command Substitution95095
|
||||
Node: Arithmetic Expansion96450
|
||||
Node: Process Substitution97418
|
||||
Node: Word Splitting98538
|
||||
Node: Filename Expansion100482
|
||||
Node: Pattern Matching103082
|
||||
Node: Quote Removal107690
|
||||
Node: Redirections107985
|
||||
Node: Executing Commands117645
|
||||
Node: Simple Command Expansion118315
|
||||
Node: Command Search and Execution120425
|
||||
Node: Command Execution Environment122803
|
||||
Node: Environment125838
|
||||
Node: Exit Status127501
|
||||
Node: Signals129285
|
||||
Node: Shell Scripts132734
|
||||
Node: Shell Builtin Commands135761
|
||||
Node: Bourne Shell Builtins137799
|
||||
Node: Bash Builtins159260
|
||||
Node: Modifying Shell Behavior190116
|
||||
Node: The Set Builtin190461
|
||||
Node: The Shopt Builtin201003
|
||||
Node: Special Builtins216717
|
||||
Node: Shell Variables217696
|
||||
Node: Bourne Shell Variables218133
|
||||
Node: Bash Variables220237
|
||||
Node: Bash Features253052
|
||||
Node: Invoking Bash254065
|
||||
Node: Bash Startup Files260078
|
||||
Node: Interactive Shells265181
|
||||
Node: What is an Interactive Shell?265591
|
||||
Node: Is this Shell Interactive?266240
|
||||
Node: Interactive Shell Behavior267055
|
||||
Node: Bash Conditional Expressions270684
|
||||
Node: Shell Arithmetic275326
|
||||
Node: Aliases278270
|
||||
Node: Arrays280883
|
||||
Node: The Directory Stack287130
|
||||
Node: Directory Stack Builtins287914
|
||||
Node: Controlling the Prompt292174
|
||||
Node: The Restricted Shell295139
|
||||
Node: Bash POSIX Mode297749
|
||||
Node: Shell Compatibility Mode309022
|
||||
Node: Job Control317051
|
||||
Node: Job Control Basics317511
|
||||
Node: Job Control Builtins322513
|
||||
Node: Job Control Variables327913
|
||||
Node: Command Line Editing329069
|
||||
Node: Introduction and Notation330740
|
||||
Node: Readline Interaction332363
|
||||
Node: Readline Bare Essentials333554
|
||||
Node: Readline Movement Commands335337
|
||||
Node: Readline Killing Commands336297
|
||||
Node: Readline Arguments338215
|
||||
Node: Searching339259
|
||||
Node: Readline Init File341445
|
||||
Node: Readline Init File Syntax342706
|
||||
Node: Conditional Init Constructs364194
|
||||
Node: Sample Init File368390
|
||||
Node: Bindable Readline Commands371514
|
||||
Node: Commands For Moving372718
|
||||
Node: Commands For History374769
|
||||
Node: Commands For Text379763
|
||||
Node: Commands For Killing383412
|
||||
Node: Numeric Arguments386445
|
||||
Node: Commands For Completion387584
|
||||
Node: Keyboard Macros391775
|
||||
Node: Miscellaneous Commands392462
|
||||
Node: Readline vi Mode398401
|
||||
Node: Programmable Completion399308
|
||||
Node: Programmable Completion Builtins407088
|
||||
Node: A Programmable Completion Example417783
|
||||
Node: Using History Interactively423030
|
||||
Node: Bash History Facilities423714
|
||||
Node: Bash History Builtins426719
|
||||
Node: History Interaction431727
|
||||
Node: Event Designators435347
|
||||
Node: Word Designators436701
|
||||
Node: Modifiers438461
|
||||
Node: Installing Bash440272
|
||||
Node: Basic Installation441409
|
||||
Node: Compilers and Options445131
|
||||
Node: Compiling For Multiple Architectures445872
|
||||
Node: Installation Names447565
|
||||
Node: Specifying the System Type449674
|
||||
Node: Sharing Defaults450390
|
||||
Node: Operation Controls451063
|
||||
Node: Optional Features452021
|
||||
Node: Reporting Bugs463239
|
||||
Node: Major Differences From The Bourne Shell464514
|
||||
Node: GNU Free Documentation License481364
|
||||
Node: Indexes506541
|
||||
Node: Builtin Index506995
|
||||
Node: Reserved Word Index513822
|
||||
Node: Variable Index516270
|
||||
Node: Function Index532762
|
||||
Node: Concept Index546546
|
||||
|
||||
End Tag Table
|
||||
|
||||
|
||||
+29
-3
@@ -8539,9 +8539,35 @@ when the @option{-l} option is supplied.
|
||||
@item compat51 (set using BASH_COMPAT)
|
||||
@itemize @bullet
|
||||
@item
|
||||
The @code{unset} builtin treats attempts to unset array subscripts @samp{@@}
|
||||
and @samp{*} differently depending on whether the array is indexed or
|
||||
associative, and differently than in previous versions.
|
||||
The @code{unset} builtin will unset the array @code{a} given an argument like
|
||||
@samp{a[@@]}.
|
||||
Bash-5.2 will unset an element with key @samp{@@} (associative arrays)
|
||||
or remove all the elements without unsetting the array (indexed arrays)
|
||||
@item
|
||||
arithmetic commands ( ((...)) ) and the expressions in an arithmetic for
|
||||
statement can be expanded more than once
|
||||
@item
|
||||
expressions used as arguments to arithmetic operators in the @code{[[}
|
||||
conditional command can be expanded more than once
|
||||
@item
|
||||
the expressions in substring parameter brace expansion can be
|
||||
expanded more than once
|
||||
@item
|
||||
the expressions in the $(( ... )) word expansion can be expanded
|
||||
more than once
|
||||
@item
|
||||
arithmetic expressions used as indexed array subscripts can be
|
||||
expanded more than once
|
||||
@item
|
||||
@code{test -v}, when given an argument of @samp{A[@@]}, where @var{A} is
|
||||
an existing associative array, will return true if the array has any set
|
||||
elements.
|
||||
Bash-5.2 will look for and report on a key named @samp{@@}
|
||||
@item
|
||||
the $@{@var{parameter}[:]=@var{value}@} word expansion will return
|
||||
@var{value}, before any variable-specific transformations have been
|
||||
performed (e.g., converting to lowercase).
|
||||
Bash-5.2 will return the final value assigned to the variable.
|
||||
@end itemize
|
||||
@end table
|
||||
|
||||
|
||||
+3
-3
@@ -2,10 +2,10 @@
|
||||
Copyright (C) 1988-2021 Free Software Foundation, Inc.
|
||||
@end ignore
|
||||
|
||||
@set LASTCHANGE Mon Nov 22 09:58:18 EST 2021
|
||||
@set LASTCHANGE Thu Dec 2 15:07:19 EST 2021
|
||||
|
||||
@set EDITION 5.2
|
||||
@set VERSION 5.2
|
||||
|
||||
@set UPDATED 22 November 2021
|
||||
@set UPDATED-MONTH November 2021
|
||||
@set UPDATED 2 December 2021
|
||||
@set UPDATED-MONTH December 2021
|
||||
|
||||
@@ -97,11 +97,17 @@ static const struct conf vars[] =
|
||||
#ifdef _PC_SOCK_MAXBUF
|
||||
{ "SOCK_MAXBUF", _PC_SOCK_MAXBUF, PATHCONF },
|
||||
#endif
|
||||
#ifdef _PC_ASYNC_IO
|
||||
{ "_POSIX_ASYNC_IO", _PC_ASYNC_IO, PATHCONF },
|
||||
#endif
|
||||
{ "_POSIX_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, PATHCONF },
|
||||
{ "_POSIX_NO_TRUNC", _PC_NO_TRUNC, PATHCONF },
|
||||
#ifdef _PC_PRIO_IO
|
||||
{ "_POSIX_PRIO_IO", _PC_PRIO_IO, PATHCONF },
|
||||
#endif
|
||||
#ifdef _PC_SYNC_IO
|
||||
{ "_POSIX_SYNC_IO", _PC_SYNC_IO, PATHCONF },
|
||||
#endif
|
||||
{ "_POSIX_VDISABLE", _PC_VDISABLE, PATHCONF },
|
||||
|
||||
{ "ARG_MAX", _SC_ARG_MAX, SYSCONF },
|
||||
@@ -188,7 +194,9 @@ static const struct conf vars[] =
|
||||
{ "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
|
||||
{ "PAGESIZE", _SC_PAGESIZE, SYSCONF },
|
||||
{ "PAGE_SIZE", _SC_PAGESIZE, SYSCONF },
|
||||
#ifdef _SC_PASS_MAX
|
||||
{ "PASS_MAX", _SC_PASS_MAX, SYSCONF },
|
||||
#endif
|
||||
{ "PTHREAD_DESTRUCTOR_ITERATIONS", _SC_THREAD_DESTRUCTOR_ITERATIONS, SYSCONF },
|
||||
{ "PTHREAD_KEYS_MAX", _SC_THREAD_KEYS_MAX, SYSCONF },
|
||||
{ "PTHREAD_STACK_MIN", _SC_THREAD_STACK_MIN, SYSCONF },
|
||||
@@ -317,7 +325,9 @@ static const struct conf vars[] =
|
||||
#ifdef _SC_POLL
|
||||
{ "_POSIX_POLL", _SC_POLL, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_PRIORITIZED_IO
|
||||
{ "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
|
||||
#endif
|
||||
{ "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
|
||||
{ "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
|
||||
{ "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
|
||||
@@ -366,15 +376,33 @@ static const struct conf vars[] =
|
||||
#ifdef _SC_T_IOV_MAX
|
||||
{ "_T_IOV_MAX", _SC_T_IOV_MAX, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_CRYPT
|
||||
{ "_XOPEN_CRYPT", _SC_XOPEN_CRYPT, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_ENH_I18N
|
||||
{ "_XOPEN_ENH_I18N", _SC_XOPEN_ENH_I18N, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_LEGACY
|
||||
{ "_XOPEN_LEGACY", _SC_XOPEN_LEGACY, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_REALTIME
|
||||
{ "_XOPEN_REALTIME", _SC_XOPEN_REALTIME, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_REALTIME_THREADS
|
||||
{ "_XOPEN_REALTIME_THREADS", _SC_XOPEN_REALTIME_THREADS, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_SHM
|
||||
{ "_XOPEN_SHM", _SC_XOPEN_SHM, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_UNIX
|
||||
{ "_XOPEN_UNIX", _SC_XOPEN_UNIX, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_VERSION
|
||||
{ "_XOPEN_VERSION", _SC_XOPEN_VERSION, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_XCU_VERSION
|
||||
{ "_XOPEN_XCU_VERSION", _SC_XOPEN_XCU_VERSION, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_XOPEN_XPG2
|
||||
{ "_XOPEN_XPG2", _SC_XOPEN_XPG2, SYSCONF },
|
||||
#endif
|
||||
@@ -699,7 +727,9 @@ static const struct conf vars[] =
|
||||
{ "POSIX_V7_LPBIG_OFFBIG_LINTFLAGS", _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS, CONFSTR },
|
||||
#endif
|
||||
|
||||
#ifdef _SC_ADVISORY_INFO
|
||||
{ "_POSIX_ADVISORY_INFO", _SC_ADVISORY_INFO, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_BARRIERS
|
||||
{ "_POSIX_BARRIERS", _SC_BARRIERS, SYSCONF },
|
||||
#endif
|
||||
@@ -733,7 +763,9 @@ static const struct conf vars[] =
|
||||
#ifdef _SC_FILE_ATTRIBUTES
|
||||
{ "_POSIX_FILE_ATTRIBUTES", _SC_FILE_ATTRIBUTES, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_FILE_LOCKING
|
||||
{ "_POSIX_FILE_LOCKING", _SC_FILE_LOCKING, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_FILE_SYSTEM
|
||||
{ "_POSIX_FILE_SYSTEM", _SC_FILE_SYSTEM, SYSCONF },
|
||||
#endif
|
||||
@@ -758,16 +790,24 @@ static const struct conf vars[] =
|
||||
{ "_POSIX_SIGNALS", _SC_SIGNALS, SYSCONF },
|
||||
#endif
|
||||
{ "_POSIX_SPAWN", _SC_SPAWN, SYSCONF },
|
||||
#ifdef _SC_SPORADIC_SERVER
|
||||
{ "_POSIX_SPORADIC_SERVER", _SC_SPORADIC_SERVER, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_THREAD_SPORADIC_SERVER
|
||||
{ "_POSIX_THREAD_SPORADIC_SERVER", _SC_THREAD_SPORADIC_SERVER, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_SYSTEM_DATABASE
|
||||
{ "_POSIX_SYSTEM_DATABASE", _SC_SYSTEM_DATABASE, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_SYSTEM_DATABASE_R
|
||||
{ "_POSIX_SYSTEM_DATABASE_R", _SC_SYSTEM_DATABASE_R, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_TIMEOUTS
|
||||
{ "_POSIX_TIMEOUTS", _SC_TIMEOUTS, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_TYPED_MEMORY_OBJECTS
|
||||
{ "_POSIX_TYPED_MEMORY_OBJECTS", _SC_TYPED_MEMORY_OBJECTS, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_USER_GROUPS
|
||||
{ "_POSIX_USER_GROUPS", _SC_USER_GROUPS, SYSCONF },
|
||||
#endif
|
||||
@@ -783,7 +823,9 @@ static const struct conf vars[] =
|
||||
{ "STREAM_MAX", _SC_STREAM_MAX, SYSCONF },
|
||||
{ "AIO_LISTIO_MAX", _SC_AIO_LISTIO_MAX, SYSCONF },
|
||||
{ "AIO_MAX", _SC_AIO_MAX, SYSCONF },
|
||||
#ifdef _SC_AIO_PRIO_DELTA_MAX
|
||||
{ "AIO_PRIO_DELTA_MAX", _SC_AIO_PRIO_DELTA_MAX, SYSCONF },
|
||||
#endif
|
||||
{ "DELAYTIMER_MAX", _SC_DELAYTIMER_MAX, SYSCONF },
|
||||
{ "HOST_NAME_MAX", _SC_HOST_NAME_MAX, SYSCONF },
|
||||
{ "LOGIN_NAME_MAX", _SC_LOGIN_NAME_MAX, SYSCONF },
|
||||
@@ -792,22 +834,46 @@ static const struct conf vars[] =
|
||||
#ifdef _SC_DEVICE_IO
|
||||
{ "_POSIX_DEVICE_IO", _SC_DEVICE_IO, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_TRACE
|
||||
{ "_POSIX_TRACE", _SC_TRACE, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_TRACE_EVENT_FILTER
|
||||
{ "_POSIX_TRACE_EVENT_FILTER", _SC_TRACE_EVENT_FILTER, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_TRACE_INHERIT
|
||||
{ "_POSIX_TRACE_INHERIT", _SC_TRACE_INHERIT, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_TRACE_LOG
|
||||
{ "_POSIX_TRACE_LOG", _SC_TRACE_LOG, SYSCONF },
|
||||
#endif
|
||||
{ "RTSIG_MAX", _SC_RTSIG_MAX, SYSCONF },
|
||||
#ifdef _SC_SEM_NSEMS_MAX
|
||||
{ "SEM_NSEMS_MAX", _SC_SEM_NSEMS_MAX, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_SEM_VALUE_MAX
|
||||
{ "SEM_VALUE_MAX", _SC_SEM_VALUE_MAX, SYSCONF },
|
||||
#endif
|
||||
{ "SIGQUEUE_MAX", _SC_SIGQUEUE_MAX, SYSCONF },
|
||||
{ "FILESIZEBITS", _PC_FILESIZEBITS, PATHCONF },
|
||||
#ifdef _PC_ALLOC_SIZE_MIN
|
||||
{ "POSIX_ALLOC_SIZE_MIN", _PC_ALLOC_SIZE_MIN, PATHCONF },
|
||||
#endif
|
||||
#ifdef _PC_REC_INCR_XFER_SIZE
|
||||
{ "POSIX_REC_INCR_XFER_SIZE", _PC_REC_INCR_XFER_SIZE, PATHCONF },
|
||||
#endif
|
||||
#ifdef _PC_REC_MAX_XFER_SIZE
|
||||
{ "POSIX_REC_MAX_XFER_SIZE", _PC_REC_MAX_XFER_SIZE, PATHCONF },
|
||||
#endif
|
||||
#ifdef _PC_REC_MIN_XFER_SIZE
|
||||
{ "POSIX_REC_MIN_XFER_SIZE", _PC_REC_MIN_XFER_SIZE, PATHCONF },
|
||||
#endif
|
||||
#ifdef _PC_REC_XFER_ALIGN
|
||||
{ "POSIX_REC_XFER_ALIGN", _PC_REC_XFER_ALIGN, PATHCONF },
|
||||
#endif
|
||||
{ "SYMLINK_MAX", _PC_SYMLINK_MAX, PATHCONF },
|
||||
#ifdef _PC_2_SYMLINKS
|
||||
{ "POSIX2_SYMLINKS", _PC_2_SYMLINKS, PATHCONF },
|
||||
#endif
|
||||
|
||||
#ifdef _SC_LEVEL1_ICACHE_SIZE
|
||||
{ "LEVEL1_ICACHE_SIZE", _SC_LEVEL1_ICACHE_SIZE, SYSCONF },
|
||||
@@ -833,11 +899,14 @@ static const struct conf vars[] =
|
||||
{ "LEVEL4_CACHE_LINESIZE", _SC_LEVEL4_CACHE_LINESIZE, SYSCONF },
|
||||
#endif
|
||||
|
||||
#ifdef _SC_IPV6
|
||||
{ "IPV6", _SC_IPV6, SYSCONF },
|
||||
{ "RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
|
||||
|
||||
{ "_POSIX_IPV6", _SC_IPV6, SYSCONF },
|
||||
#endif
|
||||
#ifdef _SC_RAW_SOCKETS
|
||||
{ "RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
|
||||
{ "_POSIX_RAW_SOCKETS", _SC_RAW_SOCKETS, SYSCONF },
|
||||
#endif
|
||||
|
||||
{ NULL, 0, SYSCONF }
|
||||
};
|
||||
|
||||
+9
-3
@@ -242,6 +242,12 @@ typedef union _malloc_guard {
|
||||
# define MMAP_THRESHOLD (8 * SIZEOF_LONG)
|
||||
#endif
|
||||
|
||||
/* We don't try to decipher the differences between the Linux-style and
|
||||
BSD-style implementations of mremap here; we use the Linux one. */
|
||||
#if USE_MMAP == 1 && defined (HAVE_MREMAP) && defined (MREMAP_MAYMOVE)
|
||||
# define USE_MREMAP 1
|
||||
#endif
|
||||
|
||||
/* usable bins from STARTBUCK..NBUCKETS-1 */
|
||||
|
||||
#define NBUCKETS 28
|
||||
@@ -1083,7 +1089,7 @@ free_return:
|
||||
#endif
|
||||
}
|
||||
|
||||
#if USE_MMAP == 1 && defined (HAVE_MREMAP)
|
||||
#if USE_MREMAP == 1
|
||||
/* Assume the caller (internal_realloc) has already performed the sanity and
|
||||
overflow tests. Basically we kill the old guard information, determine the
|
||||
new size, call mremap with the new size, and add the bookkeeping and guard
|
||||
@@ -1240,9 +1246,9 @@ internal_realloc (mem, n, file, line, flags)
|
||||
_mstats.nrcopy++;
|
||||
#endif
|
||||
|
||||
#if USE_MREMAP == 1
|
||||
/* If we are using mmap and have mremap, we use it here. Make sure that
|
||||
the old size and new size are above the threshold where we use mmap */
|
||||
#if USE_MMAP == 1 && defined (HAVE_MREMAP)
|
||||
if (nbytes > p->mh_nbytes)
|
||||
newunits = nunits;
|
||||
else
|
||||
@@ -1258,7 +1264,7 @@ internal_realloc (mem, n, file, line, flags)
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
#endif /* USE_MREMAP */
|
||||
{
|
||||
if ((m = internal_malloc (n, file, line, MALLOC_INTERNAL|MALLOC_NOTRACE|MALLOC_NOREG)) == 0)
|
||||
return 0;
|
||||
|
||||
@@ -7627,11 +7627,7 @@ verify_substring_values (v, value, substr, vtype, e1p, e2p)
|
||||
t = (char *)0;
|
||||
|
||||
temp1 = expand_arith_string (substr, Q_DOUBLE_QUOTES|Q_ARITH);
|
||||
#if 0 /* TAG: bash-5.2 */
|
||||
eflag = (shell_compatibility_level > 51) ? 0 : EXP_EXPANDED;
|
||||
#else
|
||||
eflag = 0;
|
||||
#endif
|
||||
|
||||
*e1p = evalexp (temp1, eflag, &expok);
|
||||
free (temp1);
|
||||
@@ -10064,11 +10060,8 @@ arithsub:
|
||||
/* No error messages. */
|
||||
savecmd = this_command_name;
|
||||
this_command_name = (char *)NULL;
|
||||
#if 0 /* TAG: bash-5.2 */
|
||||
|
||||
eflag = (shell_compatibility_level > 51) ? 0 : EXP_EXPANDED;
|
||||
#else
|
||||
eflag = 0;
|
||||
#endif
|
||||
number = evalexp (temp1, eflag, &expok);
|
||||
this_command_name = savecmd;
|
||||
free (temp);
|
||||
@@ -10552,11 +10545,7 @@ add_string:
|
||||
|
||||
#if defined (ARRAY_VARS)
|
||||
case '[': /*]*/
|
||||
#if 0 /* TAG:bash-5.2 */
|
||||
if ((quoted & Q_ARITH) == 0 || shell_compatibility_level <= 51)
|
||||
#else
|
||||
if ((quoted & Q_ARITH) == 0)
|
||||
#endif
|
||||
{
|
||||
if (isexp == 0 && (word->flags & (W_NOSPLIT|W_NOSPLIT2)) == 0 && isifs (c) && (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT)) == 0)
|
||||
goto add_ifs_character;
|
||||
|
||||
+1
-1
@@ -123,7 +123,7 @@ sunos5*|solaris2*)
|
||||
;;
|
||||
|
||||
# All versions of Linux (including Gentoo/FreeBSD) or the semi-mythical GNU Hurd.
|
||||
linux*-*|gnu*-*|k*bsd*-gnu-*|midnightbsd*freebsd*|dragonfly*)
|
||||
linux*-*|gnu*-*|k*bsd*-gnu-*|midnightbsd*|freebsd*|dragonfly*)
|
||||
SHOBJ_CFLAGS=-fPIC
|
||||
SHOBJ_LD='${CC}'
|
||||
SHOBJ_LDFLAGS='-shared -Wl,-soname,$@'
|
||||
|
||||
@@ -639,10 +639,7 @@ unary_test (op, arg, flags)
|
||||
/* XXX - TAG:bash-5.2 fix with corresponding fix to execute_cmd.c:
|
||||
execute_cond_node() that passes TEST_ARRAYEXP in FLAGS */
|
||||
|
||||
#if 0
|
||||
/* TAG:bash-5.2 */
|
||||
if (shell_compatibility_level > 51)
|
||||
#endif
|
||||
/* Allow associative arrays to use `test -v array[@]' to look for
|
||||
a key named `@'. */
|
||||
aflags |= AV_ATSTARKEYS;
|
||||
|
||||
Reference in New Issue
Block a user