将Linux下的文件自动备份到Windows下

#!/bin/bash
if ! grep -q '/dev/hda1' /proc/mounts
then
mount /dev/hda1 /mnt/win_c || exit
fi

backup_ball="/mnt/win_c/var_www_$(date +%F).tar.bz2"
if tar jcf $backup_ball /var/www
then
echo "$backup_ball backup succeeded. :)" | mail -s "backup OK" root
else
echo "$backup_ball backup failed. :(" | mail -s "backup FAILED" root
fi