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 ...

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 ...

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 ...

Shell builtins are commands that are loaded into memory when a shell — such as bash, sh, or zsh — is invoked. The reason for this is that keeping these commands in memory helps ensure that these ...

This article is reprinted from the book A Practical Guide to Linux Commands, Editors, and Shell Programming 3rd edition, with permission of the author and publisher ...

Kali Linux 2020.4 was released yesterday by Offensive Security, and it takes the big step of changing the default shell from Bash to ZSH. Kali Linux comes with numerous software packages and tools ...

How I learned to stop worrying and love systemd.