Difference between revisions of "Bash"

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{{Entry
 
{{Entry
|Name=Bash
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|Name=GNU Bash
 
|Short description=Shell of the GNU operating system
 
|Short description=Shell of the GNU operating system
|Full description=Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh) and C shell (csh). It is intended to conform to the IEEE POSIX P1003.2/ISO 9945.2 Shell and Tools standard. It offers functional improvements over sh for both programming and interactive use; these include command line editing, unlimited size command history, job control, shell functions and aliases, indexed arrays of unlimited size, and integer arithmetic in any base from two to sixty-four. Bash can run most sh scripts without modification.
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|Full description=Bash is the GNU Project's Bourne Again SHell, a complete implementation of the POSIX shell spec, but also with interactive command line editing, job control on architectures that support it, csh-like features such as history substitution and brace expansion, and a slew of other features.
|Homepage URL=http://www.gnu.org/software/bash/bash.html
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|Is GNU=Yes
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Bash includes useful features from the Korn shell (ksh) and C shell (csh). It offers functional improvements over sh for both programming and interactive use; these include command line editing, unlimited size command history, job control, shell functions and aliases, indexed arrays of unlimited size, and integer arithmetic in any base from two to sixty-four. Bash can run most sh scripts without modification.
|GNU package identifier=bash
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|Homepage URL=https://www.gnu.org/software/bash
 
|User level=intermediate
 
|User level=intermediate
 
|Component programs=bash bashbug
 
|Component programs=bash bashbug
|VCS checkout command=http://git.savannah.gnu.org/cgit/bash.git/?h=master
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|VCS checkout command=git clone git://git.savannah.gnu.org/bash.git
 
|Computer languages=C
 
|Computer languages=C
|Documentation note=The [http://www.gnu.org/software/bash/manual/bash.html User Reference Manual] is also available in [http://www.network-theory.co.uk/bash/manual/ printed book form].
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|Documentation note=For more information on the features of Bash that are new to this type of shell, see the file `doc/bashref.texi'.  There is also a large Unix-style man page. The man page is the definitive description of the shell's features.  See also the [https://www.gnu.org/software/bash/manual/ Bourne-Again SHell manual].
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See the file POSIX for a discussion of how the Bash defaults differ from the POSIX spec and a description of the Bash `posix mode'.
 
|Related projects=Bash.Diff,Tcsh,Zsh,lsh,pdksh,vshnu,fish
 
|Related projects=Bash.Diff,Tcsh,Zsh,lsh,pdksh,vshnu,fish
 
|Keywords=shell,command line,bash,csh,ksh,sh
 
|Keywords=shell,command line,bash,csh,ksh,sh
|Version identifier=4.2
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|Version identifier=4.3
|Version date=2011/02/13
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|Version date=2014/02/26
 
|Version status=stable
 
|Version status=stable
|Version download=http://ftp.gnu.org/gnu/bash/bash-4.2.tar.gz
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|Version download=https://ftp.gnu.org/gnu/bash/bash-4.3.tar.gz
|Last review by=Tim Musson
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|Last review by=Genium
|Last review date=2012/03/17
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|Last review date=2014/03/01
 
|Submitted by=Database conversion
 
|Submitted by=Database conversion
 
|Submitted date=2011-04-01
 
|Submitted date=2011-04-01
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|Status=
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|Is GNU=Yes
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|GNU package identifier=bash
 
|License verified date=2010-01-04
 
|License verified date=2010-01-04
 
}}
 
}}
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|Role=Maintainer
 
|Role=Maintainer
 
|Email=chet@po.cwru.edu
 
|Email=chet@po.cwru.edu
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|Resource URL=
 
}}
 
}}
 
{{Resource
 
{{Resource
|Resource audience=Bug Tracking,Developer
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|Resource audience=Bug Tracking, Developer
|Resource kind=E-mail
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|Resource kind=Mailing List Info/Archive
|Resource URL=https://lists.gnu.org/mailman/admindb/bug-bash
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|Resource URL=https://lists.gnu.org/mailman/listinfo/bug-bash
 
}}
 
}}
 
{{Resource
 
{{Resource
 
|Resource audience=Help, Support
 
|Resource audience=Help, Support
|Resource kind=E-mail
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|Resource kind=Mailing List Info/Archive
|Resource URL=https://lists.gnu.org/mailman/admindb/help-bash
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|Resource URL=https://lists.gnu.org/mailman/listinfo/help-bash
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}}
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{{Resource
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|Resource audience=Developer
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|Resource kind=VCS Repository Webview
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|Resource URL=http://git.savannah.gnu.org/cgit/bash.git
 
}}
 
}}
 
{{Software category
 
{{Software category

Revision as of 13:54, 1 March 2014


[edit]

GNU Bash

https://www.gnu.org/software/bash/
The GNU Project implementation of the standard Unix shell.

Bash is the shell, or command language interpreter, for the GNU operating system. The name is an acronym for the Bourne-Again SHell, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh, which appeared in the Seventh Edition Bell Labs Research version of Unix.

Bash is largely compatible with sh and incorporates useful features from the Korn shell ksh and the C shell csh. It is intended to be a conformant implementation of the IEEE POSIX Shell and Tools portion of the IEEE POSIX specification (IEEE Standard 1003.1). It offers functional improvements over sh for both interactive and programming use.

While the GNU operating system provides other shells, including a version of csh, Bash is the default shell. Like other GNU software, Bash is quite portable. It currently runs on nearly every version of Unix and a few other operating systems - independently-supported ports exist for MS-DOS, OS/2, and Windows platforms.

What is a shell?

A Unix shell is both a command interpreter and a programming language. As a command interpreter, the shell provides the user interface to the rich set of GNU utilities. The programming language features allow these utilities to be combined. Files containing commands can be created, and become commands themselves. These new commands have the same status as system commands in directories such as /bin, allowing users or groups to establish custom environments to automate their common tasks.

Documentation

https://www.gnu.org/software/bash/manual/

"IRC general" IRC general channel
irc://irc.libera.chat/bash

Related Projects





This entry (in part or in whole) was last reviewed on 27 September 2022.




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