search for files in a directory hierarchy

-P     Never  follow  symbolic  links.   This  is  the  default  behaviour.  When find examines or prints
       information a file, and the file is a symbolic link, the information used shall be taken from  the
       properties of the symbolic link itself.

-D debugoptions
       Print diagnostic information; this can be helpful to diagnose problems with why find is not  doing
       what  you  want.  The list of debug options should be comma separated.  Compatibility of the debug
       options is not guaranteed between releases of findutils.  For  a  complete  list  of  valid  debug
       options, see the output of find -D help.  Valid debug options include