Path: utzoo!mnetor!uunet!husc6!hao!ames!ucbcad!ucbvax!NMFECC.ARPA!KARNEY%PPC.MFENET
From: KARNEY%PPC.MFENET@NMFECC.ARPA
Newsgroups: comp.os.vms
Subject: Re: A Means Of Converting A Dif. File To An Updated File
Message-ID: <871222060130.20c0022c@NMFECC.ARPA>
Date: 22 Dec 87 14:01:30 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 21

>> Ideally I would like a program to take the original file, then take a
>> "difference file" and produce the updated file that was used with the
>> original file to produce the "difference file" in the first place.

You can get diff to produce a machine readable difference file with
diff/slp.  The output can be used to run edit/sum.  Thus at the site A, you
might do
    $ diff/slp/output=.upd file.old .new
and send file.upd to site B.  At site B, you can then generate file.new with
    $ edit/sum/update/output=.new file.old

    Charles Karney
    Plasma Physics Laboratory   Phone:   +1 609 243 2607
    Princeton University        MFEnet:  Karney@PPC.MFEnet
    PO Box 451                  ARPAnet: Karney%PPC.MFEnet@NMFECC.ARPA
    Princeton, NJ 08544-0451    Bitnet:  Karney%PPC.MFEnet@ANLVMS.Bitnet

CC:
        info-vax@KL.SRI.COM
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        KARNEY