Mastering Linux Commands: Variables and Environment Variables in Linux

Are you looking to enhance your Linux skills, specifically relating to Environment Variables? This article provides a comprehensive breakdown of Variables and Environment Variables in Linux. You’ll learn how to list all Environment Variables through Linux commands such as ‘env’, and how to retrieve the value of a Variable or Environment Variable using the ‘echo’ command. We’ll also delve into the particulars of the PATH Environment Variable.

Below is the video tutorial which provides a detailed explanation of these concepts.

Key Concepts Explanation

In this section, we’ll discuss some crucial concepts related to Environment Variables in Linux.

Environment Variables

Environment Variables in Linux are the dynamic named values that affect the behavior of running processes on a computer. They can be created, edited, saved, and deleted, and provide a way to influence the behaviors of software on your system.

The echo Command

To print a value of a particular variable in Linux, we use the echo command. Let’s take an EXAMPLE_VARIABLE as an example. To display the value, we use the command echo $EXAMPLE_VARIABLE.

The PATH Environment Variable

The PATH is an environment variable in Linux and other Unix-like operating systems that tells the shell which directories to search for executable files.

Hands-On Tasks

Let’s implement what we have learned so far. Here are a few hands-on tasks you can try:

  1. Create an environment variable in your Linux system and print its value using the echo command.
  2. Find the value of your PATH Environment Variable and try adding a new directory to it.


Understanding Environment Variables and how to manipulate them is fundamental to mastering Linux. This knowledge greatly enhances your ability to manage and streamline your workflow. We encourage you to apply the concepts learned in this article and consistently practice to solidify your skills. Engage with our Linux community on our channel if you have questions or want to learn more!

Remember, practice is key to mastering Linux commands. Don’t hesitate to try out these commands and explore their options to deepen your understanding.

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