mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-07-14 07:30:49 +02:00
commit bash-20170825 snapshot
This commit is contained in:
Chet Ramey
+137
-135
@@ -1,4 +1,4 @@
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This is bashref.info, produced by makeinfo version 6.3 from
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This is bashref.info, produced by makeinfo version 6.4 from
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bashref.texi.
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This text is a brief description of the features that are present in the
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@@ -1725,7 +1725,7 @@ omitted, the operator tests only for existence.
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$ echo ${string:7}
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7890abcdefgh
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$ echo ${string:7:0}
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$ echo ${string:7:2}
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78
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$ echo ${string:7:-2}
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@@ -1733,7 +1733,7 @@ omitted, the operator tests only for existence.
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$ echo ${string: -7}
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bcdefgh
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$ echo ${string: -7:0}
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$ echo ${string: -7:2}
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bc
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$ echo ${string: -7:-2}
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@@ -1742,7 +1742,7 @@ omitted, the operator tests only for existence.
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$ echo ${1:7}
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7890abcdefgh
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$ echo ${1:7:0}
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$ echo ${1:7:2}
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78
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$ echo ${1:7:-2}
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@@ -1750,7 +1750,7 @@ omitted, the operator tests only for existence.
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$ echo ${1: -7}
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bcdefgh
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$ echo ${1: -7:0}
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$ echo ${1: -7:2}
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bc
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$ echo ${1: -7:-2}
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@@ -1759,7 +1759,7 @@ omitted, the operator tests only for existence.
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$ echo ${array[0]:7}
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7890abcdefgh
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$ echo ${array[0]:7:0}
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$ echo ${array[0]:7:2}
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78
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$ echo ${array[0]:7:-2}
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@@ -1767,7 +1767,7 @@ omitted, the operator tests only for existence.
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$ echo ${array[0]: -7}
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bcdefgh
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$ echo ${array[0]: -7:0}
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$ echo ${array[0]: -7:2}
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bc
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$ echo ${array[0]: -7:-2}
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@@ -1786,7 +1786,7 @@ omitted, the operator tests only for existence.
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$ echo ${@:7}
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7 8 9 0 a b c d e f g h
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$ echo ${@:7:0}
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$ echo ${@:7:2}
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7 8
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$ echo ${@:7:-2}
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@@ -1798,7 +1798,7 @@ omitted, the operator tests only for existence.
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$ echo ${@:0:2}
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./bash 1
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$ echo ${@: -7:0}
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If PARAMETER is an indexed array name subscripted by '@' or '*',
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the result is the LENGTH members of the array beginning with
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@@ -1823,7 +1823,7 @@ omitted, the operator tests only for existence.
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$ echo ${array[@]:0:2}
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0 1
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$ echo ${array[@]: -7:0}
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Substring expansion applied to an associative array produces
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undefined results.
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@@ -2848,13 +2848,13 @@ Completion Builtins::).
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Unless otherwise noted, each builtin command documented as accepting
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options preceded by '-' accepts '--' to signify the end of the options.
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The ':', 'true', 'false', and 'test' builtins do not accept options and
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do not treat '--' specially. The 'exit', 'logout', 'return', 'break',
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'continue', 'let', and 'shift' builtins accept and process arguments
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beginning with '-' without requiring '--'. Other builtins that accept
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arguments but are not specified as accepting options interpret arguments
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beginning with '-' as invalid options and require '--' to prevent this
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interpretation.
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The ':', 'true', 'false', and 'test'/'[' builtins do not accept options
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and do not treat '--' specially. The 'exit', 'logout', 'return',
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'break', 'continue', 'let', and 'shift' builtins accept and process
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arguments beginning with '-' without requiring '--'. Other builtins
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that accept arguments but are not specified as accepting options
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interpret arguments beginning with '-' as invalid options and require
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'--' to prevent this interpretation.
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File: bashref.info, Node: Bourne Shell Builtins, Next: Bash Builtins, Up: Shell Builtin Commands
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@@ -2969,10 +2969,11 @@ standard.
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If COMMAND cannot be executed for some reason, a non-interactive
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shell exits, unless the 'execfail' shell option is enabled. In
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that case, it returns failure. An interactive shell returns
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failure if the file cannot be executed. If no COMMAND is
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specified, redirections may be used to affect the current shell
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environment. If there are no redirection errors, the return status
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is zero; otherwise the return status is non-zero.
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failure if the file cannot be executed. A subshell exits
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unconditionally if 'exec' fails. If no COMMAND is specified,
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redirections may be used to affect the current shell environment.
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If there are no redirection errors, the return status is zero;
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otherwise the return status is non-zero.
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'exit'
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exit [N]
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@@ -5558,7 +5559,7 @@ invocation which are not available with the 'set' builtin.
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If this option is present, or if no arguments remain after option
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processing, then commands are read from the standard input. This
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option allows the positional parameters to be set when invoking an
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interactive shell.
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interactive shell or when reading input through a pipe.
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'-D'
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A list of all double-quoted strings preceded by '$' is printed on
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@@ -8482,8 +8483,9 @@ File: bashref.info, Node: Miscellaneous Commands, Prev: Keyboard Macros, Up:
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'operate-and-get-next (C-o)'
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Accept the current line for execution and fetch the next line
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relative to the current line from the history for editing. Any
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argument is ignored.
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relative to the current line from the history for editing. A
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numeric argument, if supplied, specifies the history entry to use
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instead of the current line.
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'edit-and-execute-command (C-x C-e)'
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Invoke an editor on the current command line, and execute the
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@@ -10781,7 +10783,7 @@ D.1 Index of Shell Builtin Commands
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* :: Bourne Shell Builtins.
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(line 11)
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* [: Bourne Shell Builtins.
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(line 268)
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(line 269)
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* alias: Bash Builtins. (line 11)
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* bg: Job Control Builtins.
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(line 7)
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@@ -10813,17 +10815,17 @@ D.1 Index of Shell Builtin Commands
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* exec: Bourne Shell Builtins.
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(line 102)
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* exit: Bourne Shell Builtins.
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(line 119)
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(line 120)
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* export: Bourne Shell Builtins.
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(line 126)
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(line 127)
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* fc: Bash History Builtins.
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(line 10)
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* fg: Job Control Builtins.
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(line 17)
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* getopts: Bourne Shell Builtins.
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(line 142)
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(line 143)
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* hash: Bourne Shell Builtins.
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(line 185)
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(line 186)
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* help: Bash Builtins. (line 323)
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* history: Bash History Builtins.
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(line 40)
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@@ -10841,34 +10843,34 @@ D.1 Index of Shell Builtin Commands
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* pushd: Directory Stack Builtins.
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(line 53)
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* pwd: Bourne Shell Builtins.
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(line 205)
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(line 206)
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* read: Bash Builtins. (line 459)
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* readarray: Bash Builtins. (line 553)
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* readonly: Bourne Shell Builtins.
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(line 215)
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(line 216)
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* return: Bourne Shell Builtins.
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(line 234)
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(line 235)
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* set: The Set Builtin. (line 11)
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* shift: Bourne Shell Builtins.
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(line 255)
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(line 256)
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* shopt: The Shopt Builtin. (line 9)
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* source: Bash Builtins. (line 562)
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* suspend: Job Control Builtins.
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(line 104)
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* test: Bourne Shell Builtins.
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(line 268)
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(line 269)
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* times: Bourne Shell Builtins.
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(line 343)
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(line 344)
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* trap: Bourne Shell Builtins.
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(line 349)
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(line 350)
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* type: Bash Builtins. (line 567)
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* typeset: Bash Builtins. (line 599)
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* ulimit: Bash Builtins. (line 605)
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* umask: Bourne Shell Builtins.
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(line 398)
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(line 399)
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* unalias: Bash Builtins. (line 704)
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* unset: Bourne Shell Builtins.
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(line 416)
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(line 417)
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* wait: Job Control Builtins.
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(line 76)
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@@ -11215,7 +11217,7 @@ D.4 Function Index
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* dynamic-complete-history (M-<TAB>): Commands For Completion.
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(line 90)
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* edit-and-execute-command (C-x C-e): Miscellaneous Commands.
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(line 139)
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(line 140)
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* end-kbd-macro (C-x )): Keyboard Macros. (line 9)
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* end-of-file (usually C-d): Commands For Text. (line 6)
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* end-of-history (M->): Commands For History.
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@@ -11534,101 +11536,101 @@ Node: Shell Expansions63212
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Node: Brace Expansion65335
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Node: Tilde Expansion68169
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Node: Shell Parameter Expansion70517
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Node: Command Substitution84649
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Node: Arithmetic Expansion86004
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Node: Process Substitution86936
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Node: Word Splitting88056
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Node: Filename Expansion90000
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Node: Pattern Matching92374
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Node: Quote Removal96360
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Node: Redirections96655
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Node: Executing Commands106213
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Node: Simple Command Expansion106883
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Node: Command Search and Execution108813
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Node: Command Execution Environment111149
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Node: Environment114133
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Node: Exit Status115792
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Node: Signals117462
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Node: Shell Scripts119429
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Node: Shell Builtin Commands121944
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Node: Bourne Shell Builtins123978
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Node: Bash Builtins144578
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Node: Modifying Shell Behavior173487
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Node: The Set Builtin173832
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Node: The Shopt Builtin184245
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Node: Special Builtins200580
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Node: Shell Variables201559
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Node: Bourne Shell Variables201996
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Node: Bash Variables204100
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Node: Bash Features233893
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Node: Invoking Bash234792
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Node: Bash Startup Files240741
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Node: Interactive Shells245844
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Node: What is an Interactive Shell?246254
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Node: Is this Shell Interactive?246903
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Node: Interactive Shell Behavior247718
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Node: Bash Conditional Expressions251206
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Node: Shell Arithmetic255572
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Node: Aliases258389
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Node: Arrays260937
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Node: The Directory Stack266099
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Node: Directory Stack Builtins266883
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Node: Controlling the Prompt269851
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Node: The Restricted Shell272613
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Node: Bash POSIX Mode274438
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Node: Job Control284789
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Node: Job Control Basics285249
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Node: Job Control Builtins290217
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Node: Job Control Variables294944
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Node: Command Line Editing296100
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Node: Introduction and Notation297771
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Node: Readline Interaction299394
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Node: Readline Bare Essentials300585
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Node: Readline Movement Commands302368
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Node: Readline Killing Commands303328
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Node: Readline Arguments305246
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Node: Searching306290
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Node: Readline Init File308476
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Node: Readline Init File Syntax309623
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Node: Conditional Init Constructs329810
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Node: Sample Init File332335
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Node: Bindable Readline Commands335452
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Node: Commands For Moving336656
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Node: Commands For History338505
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Node: Commands For Text342800
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Node: Commands For Killing346189
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Node: Numeric Arguments348670
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Node: Commands For Completion349809
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Node: Keyboard Macros354000
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Node: Miscellaneous Commands354687
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Node: Readline vi Mode360563
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Node: Programmable Completion361470
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Node: Programmable Completion Builtins368931
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Node: A Programmable Completion Example378817
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Node: Using History Interactively384068
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Node: Bash History Facilities384752
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Node: Bash History Builtins387753
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Node: History Interaction392045
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Node: Event Designators395009
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Node: Word Designators396228
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Node: Modifiers397865
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Node: Installing Bash399267
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Node: Basic Installation400404
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Node: Compilers and Options403095
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Node: Compiling For Multiple Architectures403836
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Node: Installation Names405499
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Node: Specifying the System Type406317
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Node: Sharing Defaults407033
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Node: Operation Controls407706
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Node: Optional Features408664
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Node: Reporting Bugs419190
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Node: Major Differences From The Bourne Shell420384
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Node: GNU Free Documentation License437236
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Node: Indexes462413
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Node: Builtin Index462867
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Node: Reserved Word Index469694
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Node: Variable Index472142
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Node: Function Index487820
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Node: Concept Index501123
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Node: Command Substitution84694
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Node: Arithmetic Expansion86049
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Node: Process Substitution86981
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Node: Word Splitting88101
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Node: Filename Expansion90045
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Node: Pattern Matching92419
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Node: Quote Removal96405
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Node: Redirections96700
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Node: Executing Commands106258
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Node: Simple Command Expansion106928
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Node: Command Search and Execution108858
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Node: Command Execution Environment111194
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Node: Environment114178
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Node: Exit Status115837
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Node: Signals117507
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Node: Shell Scripts119474
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Node: Shell Builtin Commands121989
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Node: Bourne Shell Builtins124027
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Node: Bash Builtins144682
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Node: Modifying Shell Behavior173591
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Node: The Set Builtin173936
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Node: The Shopt Builtin184349
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Node: Special Builtins200684
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Node: Shell Variables201663
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Node: Bourne Shell Variables202100
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Node: Bash Variables204204
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Node: Bash Features233997
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Node: Invoking Bash234896
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Node: Bash Startup Files240882
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Node: Interactive Shells245985
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Node: What is an Interactive Shell?246395
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Node: Is this Shell Interactive?247044
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Node: Interactive Shell Behavior247859
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Node: Bash Conditional Expressions251347
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Node: Shell Arithmetic255713
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Node: Aliases258530
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Node: Arrays261078
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Node: The Directory Stack266240
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Node: Directory Stack Builtins267024
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||||
Node: Controlling the Prompt269992
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Node: The Restricted Shell272754
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Node: Bash POSIX Mode274579
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||||
Node: Job Control284930
|
||||
Node: Job Control Basics285390
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||||
Node: Job Control Builtins290358
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Node: Job Control Variables295085
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Node: Command Line Editing296241
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||||
Node: Introduction and Notation297912
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||||
Node: Readline Interaction299535
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||||
Node: Readline Bare Essentials300726
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Node: Readline Movement Commands302509
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Node: Readline Killing Commands303469
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||||
Node: Readline Arguments305387
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||||
Node: Searching306431
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||||
Node: Readline Init File308617
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||||
Node: Readline Init File Syntax309764
|
||||
Node: Conditional Init Constructs329951
|
||||
Node: Sample Init File332476
|
||||
Node: Bindable Readline Commands335593
|
||||
Node: Commands For Moving336797
|
||||
Node: Commands For History338646
|
||||
Node: Commands For Text342941
|
||||
Node: Commands For Killing346330
|
||||
Node: Numeric Arguments348811
|
||||
Node: Commands For Completion349950
|
||||
Node: Keyboard Macros354141
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||||
Node: Miscellaneous Commands354828
|
||||
Node: Readline vi Mode360781
|
||||
Node: Programmable Completion361688
|
||||
Node: Programmable Completion Builtins369149
|
||||
Node: A Programmable Completion Example379035
|
||||
Node: Using History Interactively384286
|
||||
Node: Bash History Facilities384970
|
||||
Node: Bash History Builtins387971
|
||||
Node: History Interaction392263
|
||||
Node: Event Designators395227
|
||||
Node: Word Designators396446
|
||||
Node: Modifiers398083
|
||||
Node: Installing Bash399485
|
||||
Node: Basic Installation400622
|
||||
Node: Compilers and Options403313
|
||||
Node: Compiling For Multiple Architectures404054
|
||||
Node: Installation Names405717
|
||||
Node: Specifying the System Type406535
|
||||
Node: Sharing Defaults407251
|
||||
Node: Operation Controls407924
|
||||
Node: Optional Features408882
|
||||
Node: Reporting Bugs419408
|
||||
Node: Major Differences From The Bourne Shell420602
|
||||
Node: GNU Free Documentation License437454
|
||||
Node: Indexes462631
|
||||
Node: Builtin Index463085
|
||||
Node: Reserved Word Index469912
|
||||
Node: Variable Index472360
|
||||
Node: Function Index488038
|
||||
Node: Concept Index501341
|
||||
|
||||
End Tag Table
|
||||
|
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