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Date: Tue, 10 Jul 2012 16:49:02 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Aleksandr Miroslav <alexmiroslav@gmail.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: shell scripting: grepping multiple patterns, logically ANDed
 (solved)
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>
> Ironically, it runs even faster than the /bin/sh + find(1) version,
> go figure.
true.
unix shell was never intended to execute scripts fast, it is usually 
slower even than python.

unix shell is designed to automate things quickly.