The fuser (pronounced “ef-user”) command is a very handy command for determining who is currently using a particular file or directory. If one user can’t access a file because another user has it ...

Some commands don’t always behave the same.

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 ...