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 ...

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 ...

Setting up the most useful aliases on Linux is a mix of what's otherwise annoying to enter, hard to remember or typed way too often. Used frequently, bash aliases can make working on the Linux command ...

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 ...

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 ...

TechRepublic's 10 Things blog posts 10 shortcut ideas for Linux users (and Terminal-friendly OS X hackers) to make the terminal a friendlier, faster place to work. To use them, open up the .bashrc ...

For a project, I have a set of "fork" directories which are duplicates of a "baseline" directory, but with some modified and some additional files. A large number of these files in these "fork" ...