How do you shut down the Ubuntu system?

To shut down the Ubuntu system, you can use the following methods:

1. Use the graphical interface: click on the “Shutdown” button on the desktop, then select the “Shutdown” option.
2. Using the command line: open the terminal and enter the following command to shut down.
3. Initiate a system shutdown immediately.
4. Open the terminal and enter the following command to shut down with a set countdown time (for example, 10 minutes).
5. Shut down the system in 10 minutes.

Note: When shutting down using the command line, you need to have administrator privileges, so you need to enter the sudo command.