# Introduction Welcome to this hands-on lab about environment variables in Linux! Environment variables are dynamic values that can affect the behavior of running processes on a computer. They play a crucial role in system configuration and program execution. By mastering environment variables, you'll gain essential skills for Linux system administration and software development. In this lab, you'll learn how to create, view, modify, and delete environment variables. We'll also explore how to make these changes permanent and understand some of the most important built-in environment variables in Linux. Whether you're a beginner or looking to solidify your understanding, this lab will provide valuable hands-on experience. Let's get started!
Click the virtual machine below to start practicing