Binary package “deborphan” in ubuntu precise
program that can find unused packages, e.g. libraries
deborphan finds "orphaned" packages on your system. It determines which
packages have no other packages depending on their installation and shows
you a list of these packages. It is most useful when finding libraries,
but it can be used on packages in all sections.
This package also includes orphaner, a text menu frontend to deborphan.
Please install the recommended packages dialog, gettext-base and apt when
you want a working and fully featured orphaner.