CentOS 8.2 MySQL installation (xshell6)

One . Go to the official website to download your corresponding mysql edition

 

 

  Choose your own version blind

 

  Two . To xshell Download in And extract the

1. Switch to the disk you want to download , command ：wget Download path

Right click here to paste ！

 

 2. decompression

command ：tar -xvJf

tar -xvJf mysql-8.0.27-linux-glibc2.12-x86_64.tar.xz
 

3. Modify the root directory name after decompression

command ：mv Name before modification / Revised name

3、 ... and . Create a data folder data

data The folder is mysql Used to store database files , All the table data in the database are placed in data Catalog .

command ：mkdir 

Four . initialization

To bin Initialization in directory

initialization ：./mysqld --initialize --user=mysql --datadir=/opt/mysql-8.0.27/data --basedir=/opt/mysql-8.0.27

After the order is executed , Will generate a temporary mysql database root User's password , Please copy it first and remember , The next first login mysql Need to use

Start the service first ---> Sign in （ Need a password ）---> Change password --->exit sign out ---> Close the service （ Need a password ）

5、 ... and .

1. Start the service

command ：./mysqld_safe &

  start-up mysq You need to enter the password generated by the first initialization

2. Client login

 3. Change the password in the client login ：

command ：alter user 'root'@'localhost' identified by '123456'; 

After a change exit  sign out

6、 ... and . close mysql service