The environment variable helps you customize the system as per your preferences. Here is how you can set environment variables in Linux.

Environment variables in Linux let you set options for various apps without having to edit configuration files. Learn how to manage them.

The PATH variable tells Linux exactly where to look when the user executes commands. Here are the ways to set the PATH variable in Linux.

By default, Linux looks for executable files in the directories specified in the PATH variable. Therefore, it’s essential to set this variable correctly when installing new programs or services to ...

Do you want to create a Shell script in your Linux system? This guide will take you through how to create a shell script using multiple text editors, how to add comments, and how to use Shell ...

Before replacing a variable in a file using SED, you need to understand what SED is, the syntax of SED, and how SED works. I’ll also show how to perform delete operations using SED.