gistfile1.txt

       -delete
              Delete  files;  true if removal succeeded.  If the removal failed, an error message is issued.  If -delete fails, find's exit status will be nonzero (when it eventually exits).  Use of
              -delete automatically turns on the -depth option.

              Warnings: Don't forget that the find command line is evaluated as an expression, so putting -delete first will make find try to delete everything below the starting points  you  speci‐
              fied.   When  testing  a  find  command line that you later intend to use with -delete, you should explicitly specify -depth in order to avoid later surprises.  Because -delete implies
              -depth, you cannot usefully use -prune and -delete together.