I don’t want the system to shutdown in the middle of the upgrade, but I’ve already started the upgrade in the GUI.
Is there a better way, maybe involving the apt lock?
EDIT: Thank you for all the helpful suggestions. Hopefully this helps the next person. My upgrade actually finished on its own while I was posting. 😂


My daily epiphany: the commenter here who showed me:
^z fg; command
I didn’t know you could append a command to fg and essentially chain to an already built process! Awesome.