help in linux shell script in copying files

From: Laplace (Laplace@tranforms.org)
Date: 01/29/03 

From: "Laplace" <Laplace@tranforms.org>
Date: Thu, 30 Jan 2003 05:51:25 +0800

if the "first letter is "A" or "a" copy it from \temp\ to \data\A\.... until
finished A
if the "first letter is "A" or "a" copy it from \temp\ to \data\A\.... until
finished A to Z....

algorithm

if the "first letter is "A" or "a" copy it from \temp\ to \data\A\....

if the "first letter is "B" or "b" copy it from \temp\ to \data\B\....

up to Z....

can u show me the script?