Ako hoces automatski, napravi neki cron job koji ce da se pokrece u neko zakazano vreme i da radi shutdown.
Imas primere na->
http://www.cyberciti.biz/tips/...n-linux-box-automatically.html
A postoji i programce KShutDown->
http://kshutdown.sourceforge.net/ , pa mozes i pomocu njega(nisam siguran da li moze da se zakaze ili ga pokreces po potrebi).
I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the dark near the Tannhauser gate. All those moments will be lost in time, like tears in rain. Time to die.