How to recover.

[Ralf Mardorf]

On Fri, 02 Sep 2016 12:56:32 -0400, s_s_shahin at fastmail.fm wrote:
>Actually while I was musing over recovery I did a (keyboard) sudo 
>command and let it run until it decided to stop

What command did you run? When did it stop?

>I was not given a clue but when I booted again Ubuntu was up and
>running!

Consider to run the following commands now:

  sudo dpkg --configure -a
  sudo apt update
  sudo apt-get -f install
  sudo apt full-upgrade
  sudo apt autoremove
  lsb_release -rc

I guess "sudo apt -f install" does the same as
"sudo apt-get -f install", but it's not good documented.