centos mysql密碼忘記了如何修改

# /etc/init.d/mysql stop
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
# mysql -u root mysql
mysql> update user set password=password("123456") where user="root";
mysql> flush privileges;
mysql> quit
# /etc/init.d/mysql restart
# mysql -uroot -p
enter password: <輸入新設的密碼newpassword>
mysql>