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volume18
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pwdiff
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README
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1989-03-26
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pwdiff takes multiple password files and compares them in an
intelligent way. For instance, it will report on different names
with the same uid, but let pass the same name with the same uid.
I wrote it one day when we had to join two password files from
different machines.
What happened was that we started out with one shared password file in
a small LAN environment. Over time, more machines came on-line.
New administrators sometimes shared the old password file, and
sometimes just copied it. Gradually it diverged, so that some of the
uids mapped to multiple users across the LAN.
Eventually our LAN got big enough, so that we hired a sitewide admin,
and he wanted to use one common password file. This makes NFS access
much easier, for example. So I wrote this program to solve his
problem. I figure this very same thing must happen to lots of sites,
so to save you some grief, here it is. Send bugs, improvements, and
cash to me.
Don Libes
National Bureau of Standards
Bldg 220, Rm A-127
Gaithersburg, MD 20899
(301) 975-3535
libes@cme-durer.arpa
uunet!cme-durer!libes