GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...

is the name of a UNIX command, executable program, or shell script to which you want to route output or from which you want to read input. The command(s) must be enclosed in either double or single ...

The Terminal app in macOS keeps track of recent commands you've used so you can reuse them at a later time. Here's how to clear Terminal's command history. When you type commands and press return in ...

Ever wondered why programming in Bash is so difficult? Bash employs the same constructs as traditional programming languages; however, under the hood, the logic is rather different. The Bourne-Again ...

Bash is fairly easy to install, but using it is another matter. Here are some commands to help IT pros dip their toes in Bash. I have written quite a bit lately about the Bash shell that exists within ...

An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...

As Terry Lambert, the developer behind Linux ancestor Unix, once said, "It is not Unix's job to stop you from shooting your foot. If you so choose to do so, then it is Unix's job to deliver Mr. Bullet ...