Take Offline

$ man -k file | grep process

fuser comes up second.

If you didn't know about fuser then perhaps you don't know about lsof either. Not exactly the same thing, but along similar lines. lsof is a good command to know about too. Although my man command wouldn't have found it for you. So I'll throw it in as a freebie.

UN*X OSes, it is what the D&D crowd does when we get computers.