Click for a PDF containing this and four other essential Linux articles. Both of the aliases below will list whatever files are open on your behalf when you are logged in. I suspect that few sysadmins ...

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 ...

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 ...