Ready to be published? LXer is read by around 350,000 individuals each month, and is an excellent place for you to publish your ideas, thoughts, reviews, complaints, etc. Do you have something to say to the Linux community?
Have you ever tried to unmount your USB thumb drive only to get the message "device is busy"? Like me, you probably thought, "I know I closed that file manager window. What's keeping it busy now?" fuser is a command that can answer that question for you, along with similar questions about what processes are using what files or sockets.