In the following example, the shutdown command is used to bring a SPARC based system to run level 0 in 5 minutes without requiring additional confirmation.
# who root console Jul 14 14:01 rimmer pts/0 Jul 14 14:03 (starbug) pmorph pts/1 Jul 14 14:04 (bluemidget) # shutdown -i0 -g300 -y Shutdown started. Wed Jul 14 14:05:03 MDT 1999 Broadcast Message from root (console) on earth Wed Jul 14 14:05:03... The system earth will be shut down in 5 minutes . . . Changing to init state 0 - please wait # INIT: New run level: 0 The system is coming down. Please wait. System services are now being stopped. . . . The system is down. syncing file systems... done Program terminated Type help for more information ok
See "How to Turn Off Power to All Devices" if you are bringing the system to run level 0 to turn off power to all devices.