{"id":139361,"date":"2026-01-26T04:22:57","date_gmt":"2026-01-26T04:22:57","guid":{"rendered":"\/tutorials\/?p=139361"},"modified":"2026-03-09T19:16:03","modified_gmt":"2026-03-09T19:16:03","slug":"bash-scripting-tutorial","status":"publish","type":"post","link":"\/ng\/tutorials\/bash-scripting-tutorial","title":{"rendered":"What is a bash script and how to use it?"},"content":{"rendered":"

If you’ve ever used a Linux operating system, you may have heard of bash. It’s a Unix shell that reads and executes various commands.<\/p>

When you need to run several bash commands, you don’t have to execute them manually one at a time. Instead, it’s possible to create a script file that contains bash functions to run those commands.<\/p>

It may sound complicated, but by learning its basics, you will understand the bash scripting language and find out how it can help your workflow.<\/p>

This article will cover the process of bash scripting. We’ll go over everything from bash commands to running a bash program on a Linux terminal.<\/p>

What is bash?<\/h2>

Bash, short for Bourne-Again Shell<\/strong>, is a Unix shell and a command language interpreter. It reads shell commands and interacts with the operating system to execute them.<\/p>

To fully understand bash shell scripting, you need to know two concepts – shell<\/strong> and scripting<\/strong>.<\/p>

Shell is a macro processor that uses commands to interact with the operating system. This means that it can retrieve, process, and store information on a computer.<\/p>

Meanwhile, scripting is the process of compiling shell commands into a new file using a text editor.<\/p>

When you write bash in a text editor, you’re compiling bash commands<\/strong> or bash functions<\/strong> – a set of commands that can be called numerous times by only using the function name. The text is then saved as an executable bash script<\/strong> file with the .sh <\/strong>extension. <\/p>

Why should you use a bash script?<\/h2>

Bash scripts can help with your workflow as they compile many lengthy commands into a single executable script file.<\/p>

For example, if you have multiple commands that you have to run at a specific time interval, you can compile a bash script instead of typing and executing the commands manually one by one. You only need to execute the script file when it’s necessary.<\/p>

Here are some other advantages of using bash scripts:<\/p>