[ale] scripting passwd change

[Eric Z. Ayers]

The version of passwd that comes with Red hat 6.2 has a little feature
called '--stdin' that can help you script a password change.  

       --stdin
              This option is used to indicate that passwd  should
              read  the  new  password from standard input, which
              can be a pipe.

$ rpm -q passwd
passwd-0.64.1-1

-Eric.


Danny Cox writes:
 > Ben,
 > 
 > On Tue, 22 Aug 2000, Ben Phillips wrote:
 > 
 > > Say I want to change my own password from a script.  Is there any way to
 > > make /usr/bin/passwd cooperate with this?  I can make a file like:
 > > 
 > > oldone
 > > newone
 > > newone
 > > 
 > > ...and if I run 'passwd < myfile' it somehow knows I'm doing this and
 > > rebels ("error changing password").  How do I bend it to my will?
 > 
 > 	Yep.  It opens "/dev/tty", which is a magic file that actually
 > opens your "controlling terminal".  In short, you can't do it with
 > passwd, at least directly.  In the back of my mind (there's those cob
 > webs again!), it seems like perl might be able to do this.
 > 
 > 	You could also grab the source to 'passwd' and muck with
 > that....
 > 
 > Danny
 > 
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