I just upgraded from Lucid to Maverick, and as expected, all my PPAs were disabled. I have re-enabled most of the ones that I want, but I would like to get a list of all packages that I installed from PPAs that I no longer have enabled. I feel that the best way to do this would be to search for all packages where the currently installed version of that package does not match any version from a currently-enabled repository. Is there an easy way to search for such packages.
Command-line solutions welcome.