Is there a way to compare what is in the ports tree with what is installed?

[Chris Haulmark]

> ie. If I had a particular version of the ports tree on a server, how
> could I check to see if any of the programs in that tree were actually
> installed?
> 
> Is there a simple command or sequence of commands to do this?

pkg_info can be used to see what ports are currently installed.

Chris

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