mysql root密码修改

1、假如之前没设置密码，现在想成test

mysqladmin -u root password test

2、假如之前密码是1234，现在想改成test

mysqladmin -u root -p1234 password test

注：-p后面如果带空格，会提示让输入密码，输入1234后，就修改成test。重启mysql生效

详情参考：http://www.linuxidc.com/Linux/2014-01/95638.htm

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修改密码后客户端如果不能登录，需要grant权限

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'test';

FLUSH PRIVILEGES; 

http://blog.csdn.net/wengyupeng/article/details/3290415

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