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 ...

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 ...

Happy hangover Monday everyone! To soothe those post-big-game blues, here's this week's man page -- lsof, the LiSt Open Files tool. If you're trying to figure out why a removable drive won't unmount ...