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<p><b>New page</b></p><div>[[File:Gnu-bash-logo.svg|thumb|Gnu-bash-logo]] {{Short description|Unix shell and command language}}<br />
{{Infobox software<br />
| name = Bash<br />
| logo = <br />
| screenshot = <br />
| caption = <br />
| author = [[Brian Fox]]<br />
| developer = [[GNU Project]]<br />
| released = 1989<br />
| latest release version = 5.1<br />
| latest release date = <br />
| programming language = [[C (programming language)|C]]<br />
| operating system = [[Unix-like]]<br />
| platform = [[Cross-platform]]<br />
| genre = [[Unix shell]], [[Command-line interface]]<br />
| license = [[GNU General Public License|GPLv3+]]<br />
| website = <br />
}}<br />
<br />
'''Bash''' ('''Bourne Again SHell''') is a [[Unix shell]] and [[command language]] written by [[Brian Fox]] for the [[GNU Project]] as a free software replacement for the [[Bourne shell]]. First released in 1989, it has been used widely as the default login shell for most [[Linux distributions]] and [[macOS]].<br />
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== History ==<br />
Bash was developed as part of the [[GNU Project]], which aimed to create a free software operating system. It was intended to be a free replacement for the [[Bourne shell]] (sh), which was the original Unix shell written by [[Stephen Bourne]]. The name "Bash" is a recursive acronym for "Bourne Again SHell," a play on words that signifies its goal of improving upon the Bourne shell.<br />
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== Features ==<br />
Bash incorporates features from the [[Bourne shell]] as well as the [[C shell]] (csh) and the [[KornShell]] (ksh). Some of its notable features include:<br />
* Command-line editing<br />
* Unlimited command history<br />
* Job control<br />
* Shell functions and aliases<br />
* Indexed arrays of unlimited size<br />
* Integer arithmetic in any base from two to sixty-four<br />
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== Scripting ==<br />
Bash is also a powerful scripting language, allowing users to write scripts to automate tasks. Bash scripts can include control structures such as loops and conditionals, functions, and variables. They are commonly used for system administration tasks, such as backups and file management.<br />
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== Usage ==<br />
Bash is the default shell on most [[Linux distributions]] and is also available on [[macOS]]. It can be installed on other [[Unix-like]] systems and even on [[Microsoft Windows]] through the [[Windows Subsystem for Linux]] (WSL).<br />
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== Related Pages ==<br />
* [[Unix shell]]<br />
* [[GNU Project]]<br />
* [[Linux]]<br />
* [[macOS]]<br />
* [[Command-line interface]]<br />
* [[Bourne shell]]<br />
* [[C shell]]<br />
* [[KornShell]]<br />
* [[Windows Subsystem for Linux]]<br />
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== See Also ==<br />
* [[List of Unix commands]]<br />
* [[Shell script]]<br />
* [[Terminal emulator]]<br />
* [[Z shell]]<br />
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== References ==<br />
{{Reflist}}<br />
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[[Category:Unix shells]]<br />
[[Category:GNU Project software]]<br />
[[Category:Linux software]]<br />
[[Category:1989 software]]<br />
[[Category:Command-line software]]<br />
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