mac配置修改mysql的密码
1）sudo mate ~/.bash_profile文件里添加mysql的path
export PATH=/usr/local/mysql/bin:$PATH

2）$source ~/.bash_profile

3）修改mysql密码
$mysqladmin -u root password

4）登录mysql
$mysql -u root -p

5）启动/停止开机启动中的mysql服务：

$sudo /Library/StartupItems/MySQL/MySQL start/stop