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

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 ...

Are you someone who never met a Unix command you didn't like? OK, maybe not. But are there commands you just can't imagine living without? Let's look at some that have made a big difference on my ...

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

This chapter excerpt on Linux Administration (download PDF) is taken from the book The Accidental Administrator: Linux Server Step-by-Step Configuration Guide. Among the topics covered in this book ...

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.

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 ...