- Interprets user command which are directly entered by the user or which are read from a file called shell script/program
- Shell script are interpreted
- Typical operations performed by shell scripts include file manipulation, program execution, and printing text
cat /etc/shells
sh shell: Bourne shell was the original shell on the unix system
bash shell: Bourne again shell .Its a improved version of sh shell. Its the standard GNU shell which is intuitive and extensive
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