mysql下载与安装（tar安装）

# Mac

## 安装：

### 在 https://dev.mysql.com/downloads/mysql/ 下载对应版本

### 双击解压 mysql-test-8.0.12-macos10.13-x86_64.tar.gz

### 将解压文件拷贝到 /usr/local/ 新建mysql目录放入mysql，完整路径 /usr/local/mysql

## mysql目录下新建data目录

### cd /usr/local/mysql

### sudo mkdir data

## mysql目录设置权限

### cd /usr/local/mysql

### sudo chown -R mysql:mysql /usr/local/mysql

## mysql/support-files 新建my-default.cnf

### cd /usr/local/mysql/support-files

### sudo vi my-default.cnf

```

[mysqld]

basedir = /usr/local/mysql

datadir = /usr/local/mysql/data

port = 3306

socket = /usr/local/mysql/data/mysql.sock

log-error = /usr/local/mysql/data/mysqld.log

[client] socket=/usr/local/mysql/data/mysql.sock

```

拷贝 my-default.cnf 到 /etc/my.cnf

sudo cp /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf

### 初始化mysql

```

cd /usr/local/mysql

sudo bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

```

### 在/usr/local/mysql/data/mysqld.log中查看

```

...

... root@localhost: 初始密码

...

```

### 登陆mysql

```

mysql -uroot -P3306 -p

```

### 输入初始密码

```

#<8.0

#mysql> alter user 'root'@'localhost' identified by '123456' PASSWORD EXPIRE NEVER;

mysql> alter user 'root'@'localhost' identified with mysql_native_password by '123456';

mysql> flush privileges;

mysql> quit;

```

# 启动

```

sudo /usr/local/mysql/support-files/mysql.server start

```

# 重启

```

sudo /usr/local/mysql/support-files/mysql.server restart

```

# 停止

```

sudo /usr/local/mysql/support-files/mysql.server stop

```

# 查看状态

```

sudo /usr/local/mysql/support-files/mysql.server status

```