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 ...

Don't like the default text editor on your Linux distro and want to change it to something else? It's pretty simple to do ...

I have two Macs, both with BASH being the default shell. Mac1 has a tricked-out .bashrc. Mac2 just got a clean OS upgrade, so pretty much everything is stock from Apple. Since file xfer between the ...

Linux 101: What does “sourcing a file” mean in Linux? Your email has been sent Jack Wallen explains the Linux source command by way of an example. Sourcing a file in Linux is a very important concept, ...

Viewing the content of files and examining access permissions and such are very different options. This post examines a number of ways to look at files on Linux. There are a number of ways to view ...