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Date: Sat, 27 Feb 2010 11:47:25 +0100
From: Dominic Fandrey <kamikaze@bsdforen.de>
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To: Michael Reifenberger <mike@reifenberger.com>
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Cc: dougb@dougbarton.us, FreeBSD-Ports <freebsd-ports@freebsd.org>
Subject: Re: portmaster usage for a list of ports
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On 27/02/2010 11:10, Michael Reifenberger wrote:
> Hi,
> for compiling a list of ports inside a emulated FreeBSD-current environment
> I would need to use portmaster as:
> 
> cat ./myports.txt | xargs portmaster -r -R -G -g -d -m "WITHOUT_GSSAPI=YES"
> (myports.txt contains a list of to be installed/updated ports)

Useless use of cat.
xargs < ./myports.txt portmaster ...

> Unfortunately this doesn't work (specifying -m "BATCH=yes" doesn't help
> too).

xargs(1) holds the solution, this one will work:
xargs -o < ./myports.txt portmaster ...

-- 
A: Because it fouls the order in which people normally read text.
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