How can I set passwords from script/file?

[Steve Roseman]

Does anyone have a good way of setting user passwords from a file, script,
etc.?  Running "passwd username <file" gives a "Must run from tty" error
message.  I need this capability for administrative mass password setting, and
changing the user interface for passwd (not my idea.)

Thanks,
Steve

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Steve Roseman
Lehigh University Computing Center
LUSGR at VAX1.CC.Lehigh.EDU