XCopy command to copy only missing files in all subfolders

Posted on 2007-07-23
Last Modified: 2008-01-09
I'm trying to figure out which XCopy switch combinations will allow me to look into subfolders for missing files and only copy those missing ones only.

PC1 has -> C:\Folder\Subfolder1\Pic1.jpg
              -> C:\Folder\Subfolder1\Pic2.jpg
              -> C:\Folder\Subfolder1\Pic3.jpg

PC2 has -> C:\Folder\Subfolder1\Pic1.jpg

What exact XCopy syntax should I use to mirror all subfolders and files? ... if I'm on the command prompt on PC1 and C:\Folder is my current context.

Here's what appears to be the available switches.

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\user>xcopy /?
Copies files and directory trees.

XCOPY source [destination] [/A | /M] [/D[:date]] [/P] [/S [/E]] [/V] [/W]
                           [/C] [/I] [/Q] [/F] [/L] [/G] [/H] [/R] [/T] [/U]
                           [/K] [/N] [/O] [/X] [/Y] [/-Y] [/Z]

  source       Specifies the file(s) to copy.
  destination  Specifies the location and/or name of new files.
  /A           Copies only files with the archive attribute set,
               doesn't change the attribute.
  /M           Copies only files with the archive attribute set,
               turns off the archive attribute.
  /D:m-d-y     Copies files changed on or after the specified date.
               If no date is given, copies only those files whose
               source time is newer than the destination time.
               Specifies a list of files containing strings.  Each string
               should be in a separate line in the files.  When any of the
               strings match any part of the absolute path of the file to be
               copied, that file will be excluded from being copied.  For
               example, specifying a string like \obj\ or .obj will exclude
               all files underneath the directory obj or all files with the
               .obj extension respectively.
  /P           Prompts you before creating each destination file.
  /S           Copies directories and subdirectories except empty ones.
  /E           Copies directories and subdirectories, including empty ones.
               Same as /S /E. May be used to modify /T.
  /V           Verifies each new file.
  /W           Prompts you to press a key before copying.
  /C           Continues copying even if errors occur.
  /I           If destination does not exist and copying more than one file,
               assumes that destination must be a directory.
  /Q           Does not display file names while copying.
  /F           Displays full source and destination file names while copying.
  /L           Displays files that would be copied.
  /G           Allows the copying of encrypted files to destination that does
               not support encryption.
  /H           Copies hidden and system files also.
  /R           Overwrites read-only files.
  /T           Creates directory structure, but does not copy files. Does not
               include empty directories or subdirectories. /T /E includes
               empty directories and subdirectories.
  /U           Copies only files that already exist in destination.
  /K           Copies attributes. Normal Xcopy will reset read-only attributes.
  /N           Copies using the generated short names.
  /O           Copies file ownership and ACL information.
  /X           Copies file audit settings (implies /O).
  /Y           Suppresses prompting to confirm you want to overwrite an
               existing destination file.
  /-Y          Causes prompting to confirm you want to overwrite an
               existing destination file.
  /Z           Copies networked files in restartable mode.

The switch /Y may be preset in the COPYCMD environment variable.
This may be overridden with /-Y on the command line.
Question by:exhaust
    LVL 43

    Expert Comment

    by:Steve Knight
    XCOPY /D without a date will copy newer files and files that don't exist, e.g.

    xcopy \\pc1\share\*.* \\pc2\share /s/e/d/c/k/r

    That will prompt for any files to overwrite (e.g. newer).  Add /y too to automatically overwrite

    You migth want to look at robocopy too.  That is a free tool from Microsoft that has a /MIR switch amogst other things which will also delete files from the destination if they are deleted from the source for instance.

    LVL 43

    Accepted Solution

    Sorry I see you are on PC1 so try

    xcopy c:\folder\*.* \\pc2\c$\folder /s/e/d/c/k/r


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