Changes

If you are using ubuntu verson 23.04 or more version, please run the following command: ./install-sss-ubuntu.shOR, Run the following command to install software shutdown script (sss), and create a alias 'xoff' command to execute the software shutdown sudo bash ./install-sss.sh After the installation is complete, an <code>xoff</code> command will be created to shut down the software.Then you can run <code>xoff</code> to execute software shutdown.