MYSQL root 密码重置

MAC电脑
停止正在运行的mysqlserver服务

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打开命令行进入特权模式

#在提示后输入密码
sudo su
#进入mysql目录
cd /usr/local/mysql/bin/
#进安全模式
./mysqld_safe --skip-grant-tables &
#回车后mysql会自动运行，可以通过下面命令进入mysql
./mysql
#重置密码
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.04 sec)
mysql> SET PASSWORD FOR 'root'@'localhost'=PASSWORD('password'); #把小写的password改电脑你的新密码
Query OK, 0 rows affected, 1 warning (0.01 sec)
mysql> exit
#结束临时安全模式，重启mysql服务
sh-3.2# jobs
[1]+  Running                 ./mysqld_safe --skip-grant-tables &
sh-3.2# kill %1

重启后就可以用 root 与password进mysql了

wsf535deMacBook-Air:bin wsf535$ mysql -uroot -ppassword
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 231
Server version: 8.0.3-rc-log MySQL Community Server (GPL)

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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> 

mysql安装完提示 -bash: mysql: command not found 需加以下环境变量。
（1）vi ~/.bash_profile；
（2）添加 export PATH=$PATH:/usr/local/mysql/bin；
（3）保存退出；
（4）source ~/.bash_profile；