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From: zzapper <david@rayninfo.co.uk>
Subject: Can an alias ever have a dynamic element?
Date: Tue, 17 Dec 2013 15:20:07 +0000 (UTC)
Organization: rayninfo
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Hi

I have an alias which creates a tar with a date component in its name that 
date is however evaluated when the shell is created which could have been a 
few days ago. The easy solution is to create a script but is they any 
alternative?