I know this question has been covered many times in blogs and here, but because it depends on the version, and I couldn't find anything for
13.04, I need to ask it here.
So here it goes - I have installed Ubuntu (Unity), and now I want to migrate to Lubuntu.
I know how to install it:
sudo apt-get install lubuntu-desktop
Given that I have installed a lot of additional packages how do I remove all traces from Ubuntu, but at the same time preserve my additionally installed packages?
What should go in this line:
sudo apt-get remove_or_autoremove_or_purge??? which_packages???