How to switch between shells? sh - bourne shell bash - bourne again shell ksh - korne shell csh - c shell "bash" is the default shell in most linux variants. You can switch between shells by typing the respective shells short commands like $csh (to switch to C shell) $ksh (to switch to korne shell)

What is a Shell? A Shell is a program that passes the instructions to the kernel of your system for it to be interpreted when it is valid. To learn more about the shell, click here How to find which shell you are on? The command to find which Linux shell you are in $ echo $SHELL