一、下载并解压
$ wget http://cdn.mysql.com/Downloads/MySQL-5.5/MySQL-5.5.42-1.el6.x86_64.rpm-bundle.tar
解压后得到以下几个文件：
$ tar -xvf MySQL-5.5.42-1.el6.x86_64.rpm-bundle.tar
MySQL-shared-5.5.42-1.el6.x86_64.rpm
MySQL-shared-compat-5.5.42-1.el6.x86_64.rpm
MySQL-server-5.5.42-1.el6.x86_64.rpm
MySQL-devel-5.5.42-1.el6.x86_64.rpm
MySQL-test-5.5.42-1.el6.x86_64.rpm
MySQL-client-5.5.42-1.el6.x86_64.rpm
MySQL-embedded-5.5.42-1.el6.x86_64.rpm

二、安装
1、安装server
（1）# rpm -ivh MySQL-server-5.5.42-1.el6.x86_64.rpm

（2）若出现冲突错误，则是由于linux可能自带了mysql的库，需要先将之删除
# rpm -e mysql-libs.x86_64 --nodeps

2、安装client
# rpm -ivh MySQL-client-5.5.42-1.el6.x86_64.rpm

三、关于配置文件

# ls *.cnf
my-huge.cnf my-innodb-heavy-4G.cnf my-large.cnf my-medium.cnf my-small.cnf
# pwd
/usr/share/mysql

使用rpm方法进行安装时，配置文件放在/usr/share/mysql中，可根据需要放到其它地方。

四、启动及关闭
1、方式一：命令行方式

# mysqld_safe &
# mysqladmin -uroot shutdown

2、方式二：服务方式

# service mysql start
# service mysql stop
# service mysql restart

3、连接数据库开始使用
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# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.42 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>

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