How can I find all the files which are not in packages in ubuntu? I'm doing some backups, and want to only back up my data, not parts of the OS. I think I can just backup /home and /etc, but I want to make sure I didn't miss anything. I'm also curious about the results. I googled it, and found a solution for redhat/rpm: rpmfind --unknown What would be the apt equivalent? Pun intended. Jeremy