Using the haltsys command

The haltsys(ADM) command halts the system immediately, without warning users. If there are any users logged into the system when the haltsys command is given, they are logged out and their work in progress is lost.

To stop the system with the haltsys command, log in as the superuser and enter:

/etc/haltsys

The system displays the message:

      ** Safe to Power Off **
              -or-
   ** Press Any Key to Reboot **