Package bash

The GNU Bourne Again shell

http://www.gnu.org/software/bash

The GNU Bourne Again shell (Bash) is a shell or command language
interpreter that is compatible with the Bourne shell (sh). Bash
incorporates useful features from the Korn shell (ksh) and the C shell
(csh). Most sh scripts can be run by bash without modification.
General Commands
Command Description
bash GNU Bourne-Again SHell
bashbug report a bug in bash
builtins bash built-in commands, see bash(1)