Allow client to cancel scheduled reboot

Question

I am scheduling a task to run some maintenance scripts and then reboot. I would like to have a warning popup on the client giving them the option to cancel before restarting their computer.  If they didn't respond within a specified amount of time, the scripts would run and the computer would reboot.  Any suggestions?

Answer 1

Have you tried applescript? There a command line tool to trigure an applescript. You could use a command like.
try
    with timeout of 2 seconds
        tell application "Finder"
            set answer to display dialog "This computer is about to be rebooted" buttons {"Reboot", "Cancel Reboot"}
        end tell
    end timeout
on error
    set answer to {button returned:"Cancel Reboot"}
end try
and then pipe the results into an if then command.