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Re: How do I send a email to all users on server?



On Mon, February 19, 2007 13:56, Bazooka Joe wrote:
> I want to notify my users of downtime... I have not been able to find
> any way to send an email to all users on server.
>
> any idea how that is done?

Lotsa ways to do it.  You could create an alias with all the names, for
instance, and mail to that.  If they're in /etc/passwd, then

cat /etc/passwd|cut -d: -f1|while
read user
do
  mail -s "Downtime Scheduled" $user < message.txt
done

would do it (put your message in message.txt).  You'd also send mail to
the non-user users like daemon, but you'd cover everybody.  If you're
using NIS, then "ypcat passwd" instead of "cat /etc/passwd".


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