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Bourne Again SHell: Difference between revisions

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Bourne Again SHell (view source)

Revision as of 17:07, 9 August 2011

18 bytes added ,  12 years ago
bash also has coprocesses (do 'man bash' and search for 'coproc').
(as pointed out in Talk:Bourne Again SHell, now supports hashes; also added some wp links)
(bash also has coprocesses (do 'man bash' and search for 'coproc').)
 
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{{implementation|UNIX Shell}}'''bash''' (the "Bourne Again SHell") is the GNU implementation of a [[Unix]] shell which is intended to be compatible with the original UNIX [[Bourne Shell]] (/bin/sh) by [[wp:Stephen R. Bourne|Stephen R. Bourne]]. ''bash'' was primarily written and is maintained by [[wp:Brian Fox (computer programmer)|Brian Fox]] and Chet Ramey. The name follows a [[wp:Free Software Foundation|Free Software Foundation]] tradition for whimsical and pun-referential names.
 
In functionality ''bash'' goes well beyond the original Bourne shells and closely matches the extensions of David Korn's "[[wp:Korn shell|Korn shellShell]]" (''ksh''), butthough lacks''bash'' built-inand support''ksh'' foruse co-processes.different However,syntax to create a coprocess or an associative array. ''bash'' also adds a number of interactive features drawn from Bill Joy's [[wp:C shell|C shellShell]] (including the many "bang expansion operators" for things like !! (expand to entire previous command), !-2 (expand to penultimate command), !$ (expand to last argument of previous command) etc).
 
* [http://www.gnu.org/software/bash/ GNU Bash homepage]
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