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Date: Sat, 10 Jul 2010 14:30:39 +0200
From: YoYo Siska <yoyo@gl.ksp.sk>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] revdep-rebuild + minimal output
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 <20100710091149.GA4904@math.princeton.edu>
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On Sat, Jul 10, 2010 at 05:11:49AM -0400, Willie Wong wrote:
> On Sat, Jul 10, 2010 at 06:52:35AM +0200, Enrico Weigelt wrote:
> > is there an option to revdep-rebuild to only do output if it has 
> > something to rebuild ? This should be run via cron to notify me
> > via email.
> 
> Usually "is there an option..." questions are well-answered by "man
> <program name>". And in this case the closest thing from the man page
> is the -q option, which doesn't do exactly what you want. 
> 
> Cheers, 

revdep-rebuild --help
...
 -p, --pretend        Do a trial run without actually emerging anything
                       (also passed to emerge command)


it would basically show you what would be emerged...
-q and -P might be usefull to get rid of unwated output...

yoyo