Bash is the GNU Project's shell. Bash is the Bourne Again SHell.
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. In addition, most sh scripts
can be run by Bash without modification.
The improvements offered by Bash include:
- Command line editing
- Unlimited size command history
- Job Control
- Shell Functions and Aliases
- Indexed arrays of unlimited size
- Integer arithmetic in any base from two to sixty-four
The maintainer also has a bash page which
can be found on the main GNU ftp server:
(via HTTP) and
(via FTP). It can also be found
on the GNU mirrors;
a mirror if possible.
is available online, as
is documentation for most GNU software. You may
also find more information about
or by looking at
or similar directories on your system. A brief summary is available by
running bash --help.
To ask for help about bash, bash programming or bash shell scripting
please use the
mailing list. To report bugs or to discus most aspects of developing
bash please use the
and most other GNU software are made on
To subscribe to these or any GNU mailing lists, please send an empty
mail with a Subject: header of just subscribe to the relevant
-request list. For example, to subscribe yourself to the GNU
announcement list, you would send mail to <email@example.com>.
Or you can use the mailing list web
and GNU in general, is a volunteer effort, and you can contribute. For
information, please read How to help GNU. If you'd
like to get involved, it's a good idea to join the discussion mailing
list (see above).
- For development sources, bug and patch trackers, and other
information, please see the
- Translating Bash
- To translate
messages into other languages, please see the Translation Project
If you have a new translation of the message strings,
or updates to the existing strings, please have the changes made in this
repository. Only translations from this site will be incorporated into
For more information, see the Translation
is currently being maintained by
Please use the mailing lists for contact.
is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your
option) any later version.