The DIRECTORY command provides 7 different functions depending on
    the qualifiers used.

    o  DIRECTORY/COMPRESS file - Compresses one or more directories

    o  DIRECTORY/DUMP file - Provides a block level dump of a
       directory

    o  DIRECTORY/REBUILD_MFD device - Recovers a corrupted MFD
       directory (000000.DIR)

    o  DIRECTORY/RECOVER file - Recovers a corrupted directory

    o  DIRECTORY/ALIAS device - Searches all directories on the
       device for alias file entries

    o  DIRECTORY/EMPTY device - Searches the disk for empty
       directories

    o  DIRECTORY/VERSION=n device - Searches all directories on the
       device for files which have at least n versions

    o  DIRECTORY/FILES=n device - Searches all directories on the
       device that have at least n file entries

 Qualifiers /ALIAS, /EMPTY, and /VERSION can be combined in one
 command. Other combinations of qualifiers are not possible.