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Date: Mon, 5 Nov 2007 13:54:41 +0200
From: Giorgos Keramidas <keramida@ceid.upatras.gr>
To: Brett Davidson <brett@net24.co.nz>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Is there a way to compare what is in the ports tree with what
	is installed?
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On 2007-11-05 14:53, Brett Davidson <brett@net24.co.nz> wrote:
> 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?

Try running the pkg_version(1) utility.  For instance, running it here,
I can see output like this:

        ksh$ pkg_version | grep -v '=$'
        ORBit2                              <
        aalib                               <
        [...]