Bourne-Again shell
Bash is a Unix command shell written for the GNU project. Its name is an acronym for "Bourne-Again SHell": a pun on the Bourne shell sh, which was the original Unix shell. The Bash command syntax is largely backward-compatible with sh, and includes ideas drawn from ksh and csh, such as the command history, the directory stack, the $RANDOM variable, and the POSIX form of command substitution, '$('.The original Bourne shell was written by Stephen Bourne. Bash was primarily written by Brian Fox and Chet Ramey.
Bash is the default shell on most GNU/Linux systems, and it can be run on most Unix-like operating systems. It has also been ported to Microsoft Windows by the Cygwin project.
Bash is distributed under the GNU General Public License. It is available for download from many sites on the Internet, including the GNU project FTP site. The latest released version is 2.05β.
The complex bash script bashforth shows several bash programming techniques, by implementing a version of the extensible programming language Forth.
External link
- The Bash Reference Manual (http://www.gnu.org/manual/bash-2.02/)
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Peaked ears and sharp horns, pricked against the
reeds
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Tumbled chuckling in the brook, all sleek and kind
cochineal.,
How his deft lips puckered round the reed,
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Brown One! Hoofed One! Beat time to keep me
Kick it on the red stone, whistle in my ear.
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Oh, the sorry brown eyes! Oh, the soft kind hand-
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Keep the pipe and play on it for all the world to hear.
Though I have but half a soul, it finds thee very
Take the pipe and go thy ways,--quick now, for
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Take the pipe, and oh-one kiss! then run, run, run! run!"
Silence on the mountain. Lonely stands the high cairn,
.
On
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