Use command find to clean up your file system

Some editors create back-up files with the the same file name and a '~' suffix. Once you are done with editing, there is no need to keep these back-up files. The command find allows us to find and remove all such back-up files in working directory:

find . -name \*~ -exec rm {} \;

If you want to remove files not been accessed for more than one year (365 days), you may issue:

find . -atime +365  -exec rm {} \;

Command find comes with many other options, for example, you may use: 'mtime' for last modified, 'ctime' for last change, or even 'inum' for inode number.