shell导出mysql部分数据

#!/bin/sh
SYSTEM=`uname -s`
echo "echo"$SYSTEM

if [[ $SYSTEM = "Linux" ]]; then
echo "SYSTEM Linux"
elif [[ $SYSTEM = "FreeBSD" ]]; then
echo "SYSTEM FreeBSD"
elif [[ $SYSTEM = "Solaris" ]]; then
echo "SYSTEM Solaris"
else
echo "What?"
fi #ifend

while read line
do
echo $line
done <backup

mysql -u root<<EOF
use mysql;
select * from user into outfile '/backup/temp.txt';