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 ...

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.

I wrote a small Unix shell in C.How are commands like `ls` and `cat`, which we use casually in the terminal, actually ...

Older commands can still be faster—and more flexible, powerful, and accessible too!

If you haven’t yet discovered the versatile curl, you might just be surprised by how clever a tool it is. curl, or cURL, is a lot more than a drop-in replacement for wget. Although either tool can be ...

Last week’s column introduced NTP, the Network Time Protocol and the concept of highly accurate timekeeping. While numerous commands exist to help system administrators maintain fairly accurate time ...