# lsof, the least talked about Unix tool

Apparently this is one of the least talked about, but most useful Linux/Unix tools.

**lsof** lists information about files opened by processes, and according to these articles, that is more useful than it sounds.

- [http://dmiessler.com/study/lsof/](http://dmiessler.com/study/lsof/)
- [http://0xfe.blogspot.com/2006/03/troubleshooting-unix-systems-with-lsof.html](http://0xfe.blogspot.com/2006/03/troubleshooting-unix-systems-with-lsof.html)

*Heard about this on [http://reddit.com](http://reddit.com)*