If you're working in a Linux environment, chances are you've encountered environment variables—even if you didn’t realize it at the time. They quietly power much of what goes on behind the scenes in ...

This chapter excerpt on Linux Administration (download PDF) is taken from the book The Accidental Administrator: Linux Server Step-by-Step Configuration Guide. Among the topics covered in this book ...

While many desktop Linux distributions provide an easy-to-use graphical user interface, there are times when you must perform certain work-related or system administration tasks using old-fashioned ...

I get a lot of questions on how to perform various tasks from a Linux shell/terminal. In the interest of making a simple cheat sheet—something I can point people to that will help them get rolling ...

The Linux shell enables communication with the kernel. The default shell for most distributions is Bash. There's a much more user-friendly option, called Fish. Essentially, the Linux shell interprets ...

A curated, searchable index of hands-on CTF labs covering Linux fundamentals, file system forensics, privilege escalation to root, secure shell scripting, network troubleshooting, firewall policies, ...

Welcome back to Linux.Ars! We have some good stuff for you this week. Axel Liljencrantz has written a helpful introduction to the Friendly Interactive Shell (Fish), a unique and innovative command ...