The Delete command serves 2 purposes :

   o Delete files by File-id
   o Delete complete directories and directory trees very fast

 Deleting files by file id's (with the /FILE qualifier) can be
 usefull in removing files which are no longer in a directory
 (eg. files marked for delete).
 Deleting a directory (with the /DIRECTORY qualifier) is many times
 faster than the normal DCL delete command, especially for large
 directories. The /TREE qualifier can be used to delete a complete
 directory tree with just one command.
 The /FILE and /DIRECTORY command cannot be combined.

   Syntax :

   (1)   DELETE <device>/FILE=<file-id>
   (2)   DELETE <full-directory-file-name>/DIRECTORY(/Qualifiers)

1  –  Qualifiers

1.1    /DIRECTORY

    This qualifier directs DFU to delete the complete contents of the
    specified directory, followed by a delete of the directory file
    itself.
    See also the /TREE qualifier. The parameter must specify a
    full directory file name. Wildcards may be used. Examples :

    DFU> DELETE mydisk:[000000]gone.dir/DIRECTORY

               gone.dir will be deleted with its contents.

    DFU> DELETE/DIRECTORY mydisk:[maindir.subdir]removethis.dir

               removethis.dir will be deleted with its contents.

1.2    /FILE

    /FILE=<file-id>

    The full 3 number file-id of the file to be deleted. In combination
    with the required device parameter this results in a unique file.
    To avoid possible errors a full file id is required. Example :

 	DFU> DELETE mydisk/FILE=(234,567,1)

1.3    /KEEP

     /NOKEEP (default)

    Used with DELETE/DIRECTORY(/TREE). This qualifier directs DFU
    to delete the contents of the directory(tree) but to preserve
    the directory files.

1.4    /NOLOG

     /LOG (default)

    This qualifier is used only with the /DIRECTORY qualifier. Default DFU
    will report each deleted file. This can be suppressed with /NOLOG.

1.5    /NOREMOVE

    /REMOVE (default)

    This qualifier can only be used with /FILE. Default DFU will also
    try to remove the file from the parent directory. For lost or
    marked-for-delete files this is not possible, and the DELETE command
    will probably fail.
    The /NOREMOVE qualifier will override the default behaviour.

1.6    /STATISTICS

    /STATISTICS
    /NOSTATISTICS  (default)

    Controls whether CPU and I/O consumption of the
    command are shown.

1.7    /TREE

    This qualifier is only used in combination with /DIRECTORY. Starting
    with the specified directory all (sub)directory contents and all
    (sub)directory files will be deleted.