DELDUPE.DOC

DELDUPE 2.3, Copyright (c) Vernon D. Buerg 1987-89. ALL RIGHTS RESERVED.



Purpose:
        Delete duplicate or older files in one directory that already
        exist in another disk directory.

Syntax:
        DELDUPE  directory-to-delete  [master-directory]
                 [/O] [/T] [/S] [/V] [/P] [/N]

        The 'directory-to-delete' specifies the drive and path name of
        the 'old' directory containing old or duplicate files.

        The 'master-directory' specifies the drive and path name of the
        'new' directory containing current or original files.  If
        omitted, the current drive and directory is used.

        If files in the 'old' directory are the same date/time, or
        older, than files of the same name in the 'new' directory, they
        are deleted.

        Specify /O to delete older files:  same name but of different
        size.  If omitted, only files with the same name, datestamp, and
        size will be deleted.

        Specify /S to delete similar files:  the same name and date/time
        but the size is different.

        Specify /N to delete files of the same name regardless of the
        date, time, or file size.

        Specify /T to display filenames only, but do not delete them.
        Use this option to determine which files are duplicates or older
        copies.

        Specify /V to confirm deletion of each eligible file.

        Specify /P to pause when the screen fills.  You may enter a ^C
        (break) at this point but the current directory will not be
        properly restored.

Examples:
        - Delete duplicate files in 'C:\TEMP' which already exist
|         in the current directory of drive B:

          deldupe c:\temp b:

        - Display the names of duplicate or older files in the directory
          called \PROJECTS which already exist in the directory \TEST

          deldupe \projects \test /o/t

History:
        Written for the IBM PC using PC DOS version 2.0 or later.

        Version 1.1, 3/07/87 - initial version
        Version 2.2, 7/21/87 - added /N to delete files of same name
|       Version 2.3, 3/01/89 - changed /N to display both directory's data
|                              making /N with /T more informative

License:

        DELDUPE is free, but it is a copyrighted work and may be distributed
        only pursuant to this license.

        Permission is hereby granted to reproduce and disseminate DELDUPE so
        long as:

           (1)  No remuneration of any kind is received in exchange; and

           (2)  Distribution is without ANY modification to the contents
                of DELDUPE.COM, DELDUPE.ASM and all accompanying
                documentation and/or support files, including the
                copyright notice and this license.

        No copy of DELDUPE may be distributed without including a copy
        of this license.

        Any other use is prohibited without express, written permission in
        advance.

                Vernon D. Buerg
                139 White Oak Circle
                Petaluma, CA  94952

                CompuServe: 70007,1212  (Go IBMCOM)
                Data/BBS:   (707) 778-8944
                            (707) 778-8841