rsync - Aug 2010 - Check/compare modtime before deleting?

I need to keep two identical copies of files on my desktop and laptop,
so I want to use the -delete option.  But I don't want to delete files
that are created after last sync.  Is there a way to keep files with
modtime later than a file of a different name (a flag file created
before each sync) when using the -delete option?

Thanks and I appreciate any help.

-Chris

On Thu, 2010-08-19 at 11:31 -0700, Chris wrote:
> I need to keep two identical copies of files on my desktop and laptop,
> so I want to use the -delete option.  But I don't want to delete files
> that are created after last sync.  Is there a way to keep files with
> modtime later than a file of a different name (a flag file created
> before each sync) when using the -delete option?
No.  As soon as you have one side making arbitrary changes that you
don't want to clobber, you need a stateful change-propagation tool such
as unison (http://www.cis.upenn.edu/~bcpierce/unison/).

-- 
Matt