Shutdown and Reboot override

[gboyce at badbelly.com (gboyce)]

On Tue, 27 Mar 2007, Rusty Shackleford wrote:

> Is there a way to override a reboot if another user issues it?  I have been
> working on a machine where multiple people are logged in as root or have the
> ability to and most of them act as if they are the only ones on the system
> and reboot and shutdown the machine.  If not override could I push out the
> time until it goes down?  I have been searching around for it and the few
> places that I saw that mention it say no but I thought I would throw it out
> there.

It appears that "shutdown -c" will cancel a scheduled shutdown of the 
system.  I believe it'll only work when someone scheduled a reboot for a 
future time rather than an immediate reboot though.

Most people I know call "reboot" or "shutdown -r now" which the cancel may 
not work with.

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