The diff command can be your best friend when you’re troubleshooting problems on a Unix system, but are you using it effectively as you could? The Unix diff command is very handy, but it can do a lot ...

With some funding from Google and the U.S. Energy Department, a pair of computer scientists at Dartmouth University are updating the venerable grep and diff Unix command line utilities to handle more ...

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.