Now, how will one know there is such a program if one does not know?
Is there a list of all the hidden treasures in VL?
to get a list of all commands that start with "cd". I don't think there is such a list, but if you check through the package descriptions you might find clues to packages that might have useful (to you) stuff in them. Then, you can find most binaries by doing something like
grep bin/ /var/log/packages/Name_of_package
Such a list would be fun, but what's treasure to me is trash to others. There are a lot of binaries in /bin and /usr/bin, I don't think anybody knows them all. There have to be some gems there