[CentOS] Display a warning message at a certain time ?

On 2/2/2010 3:03 PM, Per Qvindesland wrote:
> Hi
>
> Not sure but I seem to remember the old write command it could to the
> trick.
>

write or wall will work with open terminal windows - but shutdown offers 
the option to send such a message itself with a grace period before the 
actual shutdown.  It gets trickier if you want to pop up a new window on 
all open window managers.

-- 
   Les Mikesell
    lesmiksell at gmail.com