#!/bin/bashmysql_host="127.0.0.1"mysql_user="root"mysql_passwd="********"back_dir="/www/backup/database/"ignore_db="information_schema|mysql|performance_schema"db_arr=`mysql -u${mysql_user} -p${mysql_passwd} -h${mysql_host}  -Bse "show databases;" | grep -vE "(${ignore_db})"`datetime=$(date +%Y-%m-%d-%H_%M_%S)for dbname in ${db_arr}do    mysqldump -u${mysql_user} -p${mysql_passwd} -h${mysql_host} ${dbname} | gzip > ${back_dir}${dbname}-${datetime}.sql.gzdonefind ${back_dir} -mtime +10 -name "*.*" -exec rm -rf {} \;