Shell_Scripting

A shell script is a text file that contains a sequence of commands for a UNIX-based operating system. It is called a shell script because it combines a sequence of commands, that would otherwise have to be typed into the keyboard one at a time, into a single script. The shell is the operating system's command-line interface (CLI) and interpreter for the set of commands that are used to communicate with the system

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To run any script , we first have to change the permission to execute by any one command

chmod u+x <script-name>

chmod 777 <script-name>