From time to time you may have to delete serveral files in serveral directories. Joe artefacts "*~" for example. You can combine the find command with an rm to find and delete thos files in a single step.

find / -name "*~" -exec rm -i {} \; 

 This command find all files with a trailing ~ and deletes them. Remark the -i switch used in conjunction with the rm command. The switch forces the interactive mode so rm will prompt before any removal.