Task
Description
For Instructions
Determine who is logged in to a system.
Use the who command to determine who is logged in to a system.
How to Determine Who Is Logged in to a System
Shut down a server.
Use the shutdown command with the appropriate options to shut down a server.
How to Shut Down a Server
Shut down a stand-alone system.
Use the init command and indicate the appropriate run-level to shut down a stand-alone system.
How to Shut Down a Stand-Alone System
Turn off power to all devices.
Powering down a system includes the following devices:
CPU
Monitor
External devices, such as disks, tapes, and printers
How to Turn Off Power to All Devices
