Shutdown freebsd now
[php]shutdown -r now
Shutdown freeBSD at a scheduled time or within a set time. In the sample below we have shutdown taking place in 5 minutes. This is useful when you want to set a configuration and you’re worried about the system locking you out. Set the shutdown time for five minutes from now and if you get locked out you just have to wait for he reboot to take place.
[php]shutdown -r +5
And if you want to stop the shutdown process from taking place simple issue a kill.