[SunHELP] script to change passwd field of /etc/shadow file

[Phil Stracchino]

On Sun, Dec 21, 2003 at 03:25:08PM -0800, hike1272-sunhelp at yahoo.com wrote:
> gee, this sounds like a homework assignment!
> 
> don't you think you should do your own homework?
> 
> 
> man sort
> man awk
> man sed

Actually, I'd use perl.  Though if your list is by UID, why do you need
usernames from /etc/passwd at all?  Can't you do it all in /etc/shadow?
Just build a hash of every line in /etc/shadow keyed by UID, then go
through your list of UIDs and if $shadow{$UID} is defined, step on the
passwd field.  Then write all the records back in UID order.


> --- alani at mit.edu wrote:
> > Hi:
> > I have a file listed about 1200 UIDs out of around 14000 UIDs in the
> > /etc/passwd
> > file. I'd much appreciated if anyone can come up a script to do the
> > followings:
> > 1. Find out matching instances and grep those user names from
> > /etc/passwd file
> > against my UID list file;
> > 2. Then insert a random string or at least one specified string into
> > the passwd
> > field of the /etc/shadow file for those user names returned from step
> > 1.
> > 
> > Best Regards & Wishes for the Holiday
> > 
> > Alan
> > _______________________________________________
> > SunHELP maillist  -  SunHELP at sunhelp.org
> > http://www.sunhelp.org/mailman/listinfo/sunhelp
> _______________________________________________
> SunHELP maillist  -  SunHELP at sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/sunhelp

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