When you apt-get remove packages it can still leave behind old configs and other crap you’d probably want to get rid of, here’s how you do it.
Firstly you can have a look at what’s been removed but not completely by running the following:
dpkg -l | grep "^rc"
You can then extract the names from the list using:
dpkg -l | grep "^rc" | cut -d " " -f 3
If we want to purge them all then we just run:
dpkg -l | grep "^rc" | cut -d " " -f 3 | xargs sudo dpkg --purge
