CentOs7安装mysql

yum install perl perl-devel

cd /usr/local/src

wget https://cdn.mysql.com//Downloads/MySQL-5.6/mysql-5.6.40-linux-glibc2.12-x86_64.tar.gz

tar zxvf mysql-5.6.40-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.6.40-linux-glibc2.12-x86_64 /usr/local/mysql

useradd -s /sbin/nologin mysql

创建存放数据的目录:

mkdir -p /data/mysql 

chown -R mysql:mysql /data/mysql/

执行:

cd /usr/local/mysql

./scripts/mysql_install_db --user=mysql --datadir=/data/mysql

配置文件:

cp support-files/my-default.conf /etc/my.cnf

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

chmod 755 /etc/init.d/mysqld 

vim /etc/init.d/mysqld ,在配置里找到 basedir datadir 进行设置(如果mysqld文件中没有找到就在my.cnf中找)

basedir=/usr/local/mysql
datadir=/data/mysql

chkconfig --add mysqld

chkconfig mysqld on

service mysqld start

查看mysql是否启动的命令

ps aux |grep mysqld

2、连接mysql

mysql -uroot -p(解决：-bash:mysql:command not found；ln -s /usr/local/mysql/bin/mysql /usr/bin　做个链接即可)