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From: Erwin Van de Velde <erwin.vandevelde@gmail.com>
To: freebsd-ports@freebsd.org
Date: Fri, 8 Dec 2006 11:04:49 +0100
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Subject: 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?

Best regards,
Erwin Van de Velde