Yes, thank you. Also starting to type a command and using up-arrow to scroll through (I assume) endings of that command line that are in history. That's great

Yes, thank you. Also starting to type a command and using up-arrow to scroll through (I assume) endings of that command line that are in history. That's great too. But I often don't do, say,a do-release-upgrade (I use Kubuntu but prefer command line upgrade) within the time the command stays in history.