A Shell, also known as a CLI Shell) is a computer program that interprets text commands and sends them to the Operating System (Learn About Operating Systems) to execute. All Operating Systems have a shell program.
![](https://techelper.io/wp-content/uploads/2019/06/Dir_command_in_Windows_Command_Prompt.png)
WHAT CLI STANDS FOR
CLI stands for Command Line Interface.
EXAMPLES OF SHELL PROGRAMS
Powershell (Windows)
Terminal (Mac)