A shell script is a script written for the shell used for executing the commands.Script allows different commands entered in the shell to be executed.Shell script is easy to debug, quicker as compared to writing big programs.
However the execution speed is slow because it launches a new process for every shell command executed.
Examples of commands are cp, mv, cd ...
Shell categories in Linux are: Bourne shell compatible, C shell compatible, non traditional, and historical.
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