Notify all users

Yan Seiner yan at
Tue Sep 9 07:04:07 PDT 2008

How do I go about notifying all users?  I am looking for an equivalent 
of 'wall' for X.  xmessage doesn't really work very well as I'd have to mess 
with xhost in each user's profile.

I've looked at libnotify, but it runs into dbus security issues.

So how does a sysadmin notify all users of an impending system event (like a 


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