修改 mysql 数据库密码
mysqladmin -u username -h host_name password -P <port> "new_password" -p
mysql> set password for 'username'@'host_name'=password('new_password');
mysql> update mysql.user set password=password('new_pasword') where condition;
mysql免密码登录
在用户家目录下添加.my.cnf
文件
[client]
user=root
password=mysql@123