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Date: Fri, 8 Dec 2006 11:14:17 +0100
From: Emanuel Haupt <ehaupt@FreeBSD.org>
To: Erwin Van de Velde <erwin.vandevelde@gmail.com>
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Cc: freebsd-ports@FreeBSD.org
Subject: Re: Cleaning out the ports
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> Dear all,
> 
> I am looking for a good way to clean out the installed ports: when
> having used  a system for some time, one is often left with leave
> ports that do not have  any direct use (e.g. a library) and are not
> required anymore by any other  installed port. Is there a way to find
> such ports and remove them easily?

Have a look at sysutils/pkg_cutleaves and sysutils/pkg_rmleaves.

Emanuel