GNU bash
詳細情報
| タイトル | GNU bash |
|---|---|
| URL | https://www.gnu.org/software/bash/ |
| バージョン | ver 5.3 |
| 更新日 | 2025/07/05 |
| 追加日 | 2022/03/19 |
| 種別 | フリーソフト |
| 説明 | GNUプロジェクトが開発するインタラクティブシェル。 |
レビュー
多くのUNIX系OSで標準のシェルとして採用されている。
Bourne Shell(sh)とほぼ互換性があり、Kornシェル(ksh)やCシェル(csh)の便利な機能を取り入れている。IEEE POSIX仕様(IEEE Standard 1003.1)のIEEE POSIX Shell and Toolsの部分に準拠した実装を意図している。対話的な使用とプログラミングの使用の両方においてshよりも高機能。
非常に移植性が高く、ほぼ全てのUnixといくつかの他のオペレーティングシステムで動作し、MS-DOS、OS/2、Windowsプラットフォーム用のポートが存在する。
スクリーンショット
スクリーンショットはありません。
更新グラフ
バージョン履歴
This is a terse description of the new features added to bash-5.3 since
the release of bash-5.2. As always, the manual page (doc/bash.1) is
the place to look for complete descriptions.
1. New Features in Bash
a. When checking whether a script file argument is a binary file, check the
first two lines of a script if the first line begins with `#!'.
b. Bash does a better job of preserving user-supplied quotes around a word
completion, instead of requoting it.
c. Bash reports the starting line number in an error message about an
unterminated compound command like `if' without a `fi'.
d. Implement the POSIX requirement that running the `jobs' builtin removes
jobs from the jobs list.
f. Call bash signal handlers while executing programmable completion commands,
instead of readline's.
g. Print an error message if a regular expression used with [[ fails to compile.
h. The `umask' builtin now has additional features for full POSIX conformance.
i. `type -a -P' reports both hashed pathnames and the result of a $PATH search.
j. `trap' has a new -P option that prints the trap action associated with each
signal argument.
(省略されました)
the release of bash-5.2. As always, the manual page (doc/bash.1) is
the place to look for complete descriptions.
1. New Features in Bash
a. When checking whether a script file argument is a binary file, check the
first two lines of a script if the first line begins with `#!'.
b. Bash does a better job of preserving user-supplied quotes around a word
completion, instead of requoting it.
c. Bash reports the starting line number in an error message about an
unterminated compound command like `if' without a `fi'.
d. Implement the POSIX requirement that running the `jobs' builtin removes
jobs from the jobs list.
f. Call bash signal handlers while executing programmable completion commands,
instead of readline's.
g. Print an error message if a regular expression used with [[ fails to compile.
h. The `umask' builtin now has additional features for full POSIX conformance.
i. `type -a -P' reports both hashed pathnames and the result of a $PATH search.
j. `trap' has a new -P option that prints the trap action associated with each
signal argument.
(省略されました)
This is a terse description of the new features added to bash-5.2 since
the release of bash-5.1. As always, the manual page (doc/bash.1) is
the place to look for complete descriptions.
1. New Features in Bash
a. The bash malloc returns memory that is aligned on 16-byte boundaries.
b. There is a new internal timer framework used for read builtin timeouts.
c. Rewrote the command substitution parsing code to call the parser recursively
and rebuild the command string from the parsed command. This allows better
syntax checking and catches errors much earlier. Along with this, if
command substitution parsing completes with here-documents remaining to be
read, the shell prints a warning message and reads the here-document bodies
from the current input stream.
d. The `ulimit' builtin now treats an operand remaining after all of the options
and arguments are parsed as an argument to the last command specified by
an option. This is for POSIX compatibility.
e. Here-document parsing now handles $'...' and $"..." quoting when reading the
here-document body.
f. The `shell-expand-line' and `history-and-alias-expand-line' bindable readline
commands now understand $'...' and $"..." quoting.
(省略されました)
the release of bash-5.1. As always, the manual page (doc/bash.1) is
the place to look for complete descriptions.
1. New Features in Bash
a. The bash malloc returns memory that is aligned on 16-byte boundaries.
b. There is a new internal timer framework used for read builtin timeouts.
c. Rewrote the command substitution parsing code to call the parser recursively
and rebuild the command string from the parsed command. This allows better
syntax checking and catches errors much earlier. Along with this, if
command substitution parsing completes with here-documents remaining to be
read, the shell prints a warning message and reads the here-document bodies
from the current input stream.
d. The `ulimit' builtin now treats an operand remaining after all of the options
and arguments are parsed as an argument to the last command specified by
an option. This is for POSIX compatibility.
e. Here-document parsing now handles $'...' and $"..." quoting when reading the
here-document body.
f. The `shell-expand-line' and `history-and-alias-expand-line' bindable readline
commands now understand $'...' and $"..." quoting.
(省略されました)
差分がありません
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