Re: help in purging old packages

[Gary Dale <garydale@torfree.net>]

On 09/01/15 11:23 AM, Comer Duncan wrote:
> Hi,
>
> I have a situation in which I am running wheezy 7.7 and for various 
> reasons now want to purge all packages which for some reason are still 
> present from etch, lenny, and squeeze.  What I would like to know is 
> how can I purge all such packages using dpkg?  I can not seem to find 
> how to select just those old packages for purging. Can those who know 
> about this please help?
>
> Thanks.

Check out aptitude autoclean and aptitude clean. Or you can install 
deborphan.