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 ...

Every month or two, someone asks me how they should go about learning Unix. The short answer is always “use it” or maybe as much as “use it — a lot.” But the detailed answer includes a lot of steps ...

Unix was developed as a command line interface in the early 1970s with a very rich command vocabulary. DOS followed more than a decade later for the IBM PC, and DOS commands migrated to Windows.

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 ...

The OS X Terminal opens up a world of powerful UNIX utilities and scripts. If you're migrating from Linux, you'll find many familiar commands work the way you expect. But power users often aren't ...

If you ever find yourself cutting and pasting Unix commands and their output into a file in order to create a record of some anomaly you have encountered on a system you manage or to document a ...

Minix, the Unix operating system that inspired Linus Torvalds to create Linux, has been expanded to give users a wider range of commands and features, thanks in large part to a Google Summer of Code ...

Terminal provides a command line interface to control the UNIX-based operating system that lurks below macOS (or Mac OS X). Here’s everything you need to know about Terminal, and what it can do for ...