Shell

A shell is a command-line interpreter that offers a text-based interface to users. It can be used as command-line interface (CLI) on a terminal emulator or as a script interpreter running in the background.

Available software
For more shell options see the output of the following command ( requried):

Changing the default shell
The default shell can be changed using the command. To change the default shell for the current user, type and enter a correct path to the new shell. In the example below, a user named is changing his default shell from  to :

can be used by the super user account to change the default shell for any user.