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Shell is an interface of the operating system. It accepts commands from users and interprets them to the operating system.

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Shell script to create a file and write content

If you want to run a bunch of commands together, you can do so by creating a shell script. Shell scripts are very useful if you need to do a task routinely, like taking a backup. You can list those commands and execute them all with just a single script.

Let’s see how you can create a shell script and run it on Linux.

Creating a Shell Script

Login to your Linux machine and open the terminal, navigate to the folder where you want to store the shell script.

Shell scripts end with the extension “.sh”. Let’s create our first shell script. Type in

touch script.sh

Now, this script file is not executable by default, we have to give the executable permission to this file.

Bash create file if not exist

Type in

chmod +x script.sh

Now, we will add some commands to this shell script. Open this shell script with any text editor of your choice (command-line based or GUI based) and add some commands. We will use nano. Type in 

nano scr

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