Date: Sun, 27 Mar 2011 09:54:28 -0700 From: Doug Barton <dougb@FreeBSD.org> To: perryh@pluto.rain.com Cc: rg.lists@rzweb.com, freebsd-ports@freebsd.org Subject: Re: Updating multiple ports with portmaster Message-ID: <4D8F6BC4.9050300@FreeBSD.org> In-Reply-To: <4d8ee69f.sDPKG5fISx5FNrmy%perryh@pluto.rain.com> References: <61994f32f152b25487eaf153546ab59f@flabnapple.net> <4D8E18AF.6010906@FreeBSD.org> <4D8E1B9D.8050402@infracaninophile.co.uk> <4D8EBDBA.6070602@FreeBSD.org> <4d8ee69f.sDPKG5fISx5FNrmy%perryh@pluto.rain.com>
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On 03/27/2011 00:26, perryh@pluto.rain.com wrote:
> Doug Barton<dougb@freebsd.org> wrote:
>> On 03/26/2011 10:00, Matthew Seaman wrote:
>>> pkg_version -vIL= | awk '/^p5-/ { print $1 }' | xargs portmaster
>>
>> That's a good suggestion, but if you want to use that technique, better
>> would be: portmaster `pkg_version -vIL= | awk '/^p5-/ { print $1 }'` ...
>
> Unless the number of ports involved is very large, either
> should produce exactly the same effect. Absent a -n or -s
> switch, xargs collects up to 5000 args or a ~250KB command
> line for each invocation of (in this case) portmaster.
Interesting ... not sure how I got it in my mind that xargs always runs
them one at a time, but thanks for clarifying this. :)
Doug
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