修改MySQL数据库中一个用户的密码

bash$ mysql -u root mysql

mysql> UPDATE user SET password=PASSWORD("new password") WHERE user=hunte; 
mysql> FLUSH PRIVILEGES; 
mysql> QUIT

bash$ mysql -u root mysql 
mysql> SET PASSWORD FOR hunte=PASSWORD(new password); 
mysql> QUIT

bash$ mysqladmin -u root "old password" "new password"