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 ...

You have probably used lsof from time to time, probably when tracking down some sort of problem. But maybe you haven’t tried all of its permutations or looked at it just to get a deeper understanding ...

Only root can list all files; /dev warnings disabled; kernel ID check disabled. OK, let's take a deep breath... the most basic use of lsof is to show open files on a volume, or to determine what ...