Shutting Down Your Raspberry Pi
You want to shut down your Raspberry Pi.
Click on the red Logout button in the bottom-right corner of the desktop. This will display a number of options (Figure 1-15).
Shutdown
Shuts down the Raspberry Pi. You will need to unplug the power and plug it in again to get the Raspberry Pi to boot up again.
Reboot
Reboots the Raspberry Pi.
Logout
Logs you out and displays a prompt to enter your login credentials so that you can log back in.
Cancel
Allows you to change your mind and continue using the Raspberry Pi.
You can also reboot from the command line by issuing the command:
sudo halt |
You may have to do this after installing some software. When you do reboot, you see the message shown in Figure 1-16, which illustrates the multiuser nature of Linux and warns that all users connected to the Pi.
Discussion
Unlike shutting down most computers, shutting down a Rasperry Pi does not actually turn off the power. It goes into a low-power mode—and it is a pretty low-power device anyway (but the Raspberry Pi hardware has no control over its power supply).
See Also
You can buy a module that will turn off the power when the Raspberry Pi shuts down here: http://www.pi-supply.com/.