To shut down a Windows 2008 Server Core System, at the command prompt type:

Shutdown -s -t xx

where

-s = shut down

-t xx = time to wait before shutting down in seconds, where xx =0 to 600

To shut down a Windows 2008 Server Core System immediately, at the command prompt type:

Shutdown -s -t 0

where 0 = wait zero seconds (shut down immediately)

To restart a Windows 2008 Server Core System, at the command prompt type:

Shutdown -r -t xx

where

-r = reboot

-t xx = time to wait before shutting down in seconds, where xx = 0 to 600

To restart a Windows 2008 Server Core System immediately, at the command prompt type:

Shutdown -r -t 0

where 0 = wait zero seconds (reboot immediately)