Desu apt-file to find out which package should own the stuff in there
16:50:52 Desu then reinstall it
4:291:27 Desu packages even, since there will be multiple
16:51:49 Desu could be a good idea to do a integrity check too
16:52:11 Desu get your package manager to list all the files missing from your
system
16:53:34 Desu #ubuntu can tell you