sudo tar -Jxv -f /home/×××shanlin/Downloads/mysql-8.0.23-linux-glibc2.12-x86_64.tar.xz -C /usr/local/

sudo ln -s /usr/local/mysql-8.0.23-linux-glibc2.12-x86_64 mysql

sudo mkdir -p /data/mysql/data
sudo mkdir -p /var/run/mysqld

sudo groupadd mysql
sudo useradd -r -g mysql mysql

sudo chown mysql:mysql -R /data/mysql/data
sudo chown mysql:mysql -R /var/run/mysqld

[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/usr/local/mysql
datadir=/data/mysql/data
socket=/var/run/mysqld/mysqld.sock
log-error=/data/mysql/data/mysql.err
pid-file=/data/mysql/data/mysql.pid
character_set_server=utf8mb4
symbolic-links=0
explicit_defaults_for_timestamp=true
default_authentication_plugin=mysql_native_password
#解决Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)错误
[client]
port=3306
socket=/var/run/mysqld/mysqld.sock

#直接用vim创建my.cnf并写入上面的内容
sudo vim /usr/local/mysql/my.cnf

#mysql 
MYSQL_HOME=/usr/local/mysql
PATH=$PATH:$MYSQL_HOME/bin
export PATH MYSQL_HOME

#把上面的内容写在profile文件的最后
sudo vim /etc/profile
#环境变量立即生效
sudo source /etc/profile

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

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

sudo cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

sudo ln -s /usr/local/mysql/bin/mysql /usr/bin

mysql -u root -p

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