find: Owner

 
 2.7 Owner
 =========
 
  -- Test: -user uname
  -- Test: -group gname
      True if the file is owned by user UNAME (belongs to group GNAME).
      A numeric ID is allowed.
 
  -- Test: -uid n
  -- Test: -gid n
      True if the file's numeric user ID (group ID) is N.  These tests
      support ranges ('+N' and '-N'), unlike '-user' and '-group'.
 
  -- Test: -nouser
  -- Test: -nogroup
      True if no user corresponds to the file's numeric user ID (no group
      corresponds to the numeric group ID). These cases usually mean that
      the files belonged to users who have since been removed from the
      system.  You probably should change the ownership of such files to
      an existing user or group, using the 'chown' or 'chgrp' program.