So, Ive created a .sh script, which will turn your screen black, gather a list of updates, download and install them if nessecary, then shutdown. The script can be edited and read, and will not harm your system.
I can use this! Read on:
How often do you notice the update manager has updates available, just as youre about to shut down? And maybe you dont have the time to wait the extra few minutes for downloading and installing the waiting packages, and end up shutting down your system without performing the updates. When you come back on, you have things to do, and disregard the updates, forgetting about them until later on. Theres rarely a good time to perform updates in Ubuntu, and without a Update and Shutdown option theres no real way you can leave your system updating.