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 ...

With the right set of functions and aliases, Unix users can save themselves time and trouble and make their Unix accounts a lot nicer to use. In today’s “how to”, we’re going to look at a simple ...

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 ...