One of the most common arguments against Linux as a whole is that it’s an operating system that relies heavily on the command-line, and thus it’s not for the novice user. Years ago, I wouldn’t have ...

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 ...

Sometimes I need a shortcut to make things a bit faster. There are also situations where my memory needs a helping hand with the litany of commands I use throughout the week. That's why I often turn ...

Have you heard it said that everything in Linux is a file? That is largely true, and that’s why the ability to manipulate files is crucial to mastering Linux Fu. One thing that makes a Linux ...

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 ...