Sudo lets you run any terminal command as another user — hence "substitute user" — but the default and most common use for it ...

With -w, grep will match “error” but skip things like “errors” or “terror.” The difference can be subtle, but when you’re ...

There are a lot of ways on Linux to make repeating commands easier than retyping them, and here's a nice collection of them. Life on the command line on Linux is clearly something most of us enjoy, ...