Description:

Bash is a GNU project sh-compatible shell or command language interpreter. Bash
(Bourne Again shell) incorporates useful features from the Korn shell (ksh) and
the C shell (csh). Most sh scripts can be run by bash without modification.

Bash offers several improvements over sh, including command line editing,
unlimited size command history, job control, shell functions and aliases,
indexed arrays of unlimited size and integer arithmetic in any base from two
to 64. Bash is ultimately intended to conform to the IEEE POSIX P1003.2/ISO
9945.2 Shell and Tools standard.