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#REDIRECT [[rc (Unix shell)#es]]
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{{lowercase|title=es shell}} ▼{{Infobox Software
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| developer = Byron Rakitzis, Paul Haahr
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The '''es shell''' is a [[command line interpreter]] developed by Byron Rakitzis and Paul Haahr, that uses a [[scripting language]] similar to the [[rc shell]] of the [[Plan 9 from Bell Labs|Plan 9]] [[operating system]]. It is intended to provide a fully [[functional programming|functional]] [[programming language]] as a [[Unix shell]]. The bulk of es' development occurred in the early 1990s. A paper on an early version of the es shell was presented at the Winter 1993 [[USENIX]] conference in [[San Diego]].<ref>[http://www.webcom.com/~haahr/es/es-usenix-winter93.html Es: A shell with higher-order functions] by Byron Rakitzis, [[NetApp|NetApp, Inc]], and Paul Haahr, [[Adobe Systems Incorporated]] [Errata note 1]</ref>
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A patched version of [ftp://ftp.sys.utoronto.ca/pub/es/es-0.9-beta1.tar.gz es-0.9-beta1] which includes job control features, a precompiled binary, additional documentation, a basic [[emacs]] editing mode and other contributed programs is available: [http://burton.samograd.googlepages.com/es-0.9-beta1job-control.tar.bz2 es-0.9-beta1job-control.tar.bz2]
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The [http://github.com/frytvm/XS Xs] shell is a fork of es with bugfixes, code cleanup, better [[readline]] integration and syntax improvements.
[http://github.com/epilnivek/kes Kes] is a fork of es compatible with Linux and Mac OS X.
▲{{lowercase| title=es shell}}
==See also==
*[[rc|rc shell]]
*[[Comparison of command shells]]
*[[Command line interface]]
==References==
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==External links==
*[http://hawkwind.utcs.utoronto.ca:8001/mlists/es.html The es shell]
*[ftp://ftp.sys.utoronto.ca/pub/es/ FTP archive for the es shell] Includes mailing list archives
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[[Category:Unix shells]]
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[[el:Κέλυφος Es]]
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