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Date: Wed, 21 Nov 2007 17:13:27 +0100
From: "Valerio Daelli" <valerio.daelli@gmail.com>
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Cc: 
Subject: Re: Need help with backup shell script
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> ---
> #!/bin/sh
>
> MOUNT=/external
> DATE=`date +%Y%m%d%H%M`
>
> mount /dev/da2 $MOUNT #Change device name
> find $MOUNT -mtime +30 -delete
> mkdir $MOUNT/$DATE
> cp -rp /backup/* $MOUNT/$DATE
> umount /external
> ---
>
Please substitute the line starting with 'cp' with this one:

rsync -rlpgoD /backup/ $MOUNT/$DATE

(you must portinstall rsync as well)
since 'cp -rp' preserve modification times as well while 'rsync -rlpgoD'
preserve permission but not mtime.
Sorry

Valerio Daelli