An excerpt from Linux Programming by Example: The Fundamentals explaining memory management and the Linux/Unix address space.

Did you know that you can set temporary environment variables in Linux? Learn how to get started with our guide and video tutorial.

The Linux command line is a powerful tool that gives you complete control over your system. But to unleash its full potential, you must understand the environment in which it operates. One crucial ...

Jack Wallen introduces you to Linux environment variables. What are they and how are they set and unset?

Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...