Click for a PDF with this and four other essential Linux articles. And, if you’ve ever heard anyone say that for Unix, everything is a file, you might not be too surprised to learn that lsof works ...

One of the ways to determine how useful a directory and its contents are or to produce a summary that gives you a sense of what the contents are about is to collect statistics on the number of files, ...

Lifehacker reader Michael writes in with a nifty tip that was lurking in our comments all along, but deserves to see the bright light of posting. If you're already using the Unix-like Cygwin, it's an ...

Cron is nice and all, but don't forget about its cousin at. When I first started using Linux, it was like being tossed into the deep end of the UNIX pool. You were expected to use the command line ...

If you are starting to experiment with the OS X Terminal, you'll want to know what commands are available. Here are some ways to explore your options. Topher, an avid Mac user for the past 15 years, ...

If you've used the command line in Linux or a Unix-based platform like macOS, you're probably familiar with the "sudo" command -- it lets you run tasks with different (usually elevated) permissions ...