At work I have to manage around 50 linux servers and updating them one at a time takes a lot of time!
I stumbled some while ago on an gnome-terminal emulator with fancy features like splitting your window in 2 terminals or more.
It’s fully configurable and trr .. it has a broadcast feature!
so what i do, I split my screen so i get like 16 terminals and login each server. then I can select one terminal, choose broadcast all, and everything I type in this terminal automagically appears in the other 15 terminals!So I just type “apt-get -y –force-yes upgrade”