I accidentally removed all the packages starting with the name
sudo apt-get remove jpeg*
This screwed up a lot of things, removed Unity, Firefox, Flash player etc.
I somehow managed to recover the desktop and unity but then a lot of things are still buggy. For example
.rpm files and
.tag.gz just won't open up at all.
What I want is a way to fix everything that's amiss. Something that is the equivalent of a 'repair installation' with a windows disc.
Any tips, anyone?