mysql批量导出库表结构

for i in rm-xxxxzh809  rm-xxx0dl80430  
do
        echo $i
        mkdir -p /tmp/db/${i}/
        mysql -uroot -p'xxxx'  -h ${i}.mysql.rds.aliyuncs.com -N -e "show databases" |egrep -v 'test|sys|performance_schema|mysql|information_schema|recycle_bin' |xargs -i bash -c  "/usr/bin/mysqldump  -uroot -p'xxxx' -h ${i}.mysql.rds.aliyuncs.com   --skip-add-locks --skip-add-drop-table --single-transaction --no-data --databases {} > /tmp/db/${i}/{}.sql"
done