** 注意：以下命令當遇到沒有許可權時（需要root許可權時），在命令前加sudo，例如：sudo vim etc/my.cnf **

cd /usr/local

wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz（網址可能失效，自己重新百度下下載地址）

tar -zxvf mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz
 

mv mysql-5.7.26-linux-glibc2.12-x86_64 mysql/

[dev@neisit-1 local]$ cd mysql

[dev@neisit-1 mysql]$ mkdir data

[dev@neisit-1 mysql]$ yum install libaio

[dev@neisit-1 mysql]$ cd bin

[dev@neisit-1 bin]$ mysqld --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --initialize
 

[dev@neisit-1 bin]$ cd /

[dev@neisit-1 /]$ sudo vim etc/my.cnf

[mysqld]

datadir=/usr/local/mysql/data

basedir=/usr/local/mysql

socket=/tmp/mysql.sock

user=mysql

port=3306

character-set-server=utf8

# 取消密碼驗證（登入時不需要輸密碼，建議註釋掉。忘記密碼時可以放開）

skip-grant-tables
 

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

# skip-grant-tables

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

[dev@neisit-1 bin]$ cd ..

[dev@neisit-1 mysql]$ sudo vim etc/my.cnf

[mysqld]

datadir=/usr/local/mysql/data

basedir=/usr/local/mysql

socket=/tmp/mysql.sock

user=mysql

port=3306

character-set-server=utf8

# 取消密碼驗證（登入時不需要輸密碼，建議註釋掉。忘記密碼時可以放開）

skip-grant-tables

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

# skip-grant-tables

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

[dev@neisit-1 mysql]$ cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

[dev@neisit-1 mysql]$ chkconfig mysql on

[dev@neisit-1 mysql]$ service mysql start

[dev@neisit-1 mysql]$ cd bin

[dev@neisit-1 bin]$ mysql -u root(使用者名稱) -p