备份除了系统库以外的所有数据库
#!/bin/bashuser=rootpassword=123456host=127.0.0.1data_path=/tmpmysql -e "show databases;" -u $user -p $password -h $host| grep -Ev "Database|information_schema|performance_schema|mysql|sys"|xargs mysqldump -uroot -p$password --set-gtid-purged=OFF --triggers --routines --events --single-transaction --flush-logs --master-data=2 --databases > $data_path/all.sql
