groupadd mysql 添加用户组

useradd mysql -s /sbin/nologin -g mysql -M  添加用户

mv mysql-5.5.54-linux2.6-x86_64.tar.gz /home/ye/software/ 下载软件到软件包

cd /home/ye/software/

tar -xf mysql-5.5.54-linux2.6-x86_64.tar.gz   #解压mysql软件

cd mysql-5.5.54-linux2.6-x86_64

mv /home/ye/software/mysql-5.5.54-linux2.6-x86_64/ /application/mysql-5.5.54/ 移动软件包到安装路径内

cd /application/mysql-5.5.54/

ln -s /application/mysql-5.5.54/ /application/mysql      #创建软连接

ls -l /application/mysql/support-files/*.cnf

cp /application/mysql/support-files/my-small.cnf /etc/my.cnf   配置配置文件

mkdir -p /application/mysql/data       创建data数据目录

chown -R mysql.mysql /application/mysql/        #修改目录权限

/application/mysql/scripts/mysql_install_db --basedir=/application/mysql -- datadir=/application/mysql/data --user=mysql     #初始化mysql

tree /application/mysql/data/  #查看

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

chmod +x /etc/init.d/mysqld  添加权限

ll /etc/init.d/mysqld

sed -i 's#/usr/local/mysql#/application/mysql#g' /application/mysql/bin/mysqld_safe  /etc/init.d/mysqld  #修改配置文件内默认的程序执行路径

/etc/init.d/mysqld start 启动mysql

/application/mysql/bin/mysqld_safe  --user=mysql& #另一种方式启动MYSQL

netstat -lntup 查看3306端口是否启动

chkconfig --add mysqld  添加服务

chkconfig mysqld on  设置mysql服务开机默认启动

chkconfig --list mysqld 查看服务状态

echo 'export PATH=/application/mysql/bin:$PATH' >>/etc/profile  #更改mysql命令的全局环境变量；另一种方法为把/application/mysql/bin/下面的命令拷贝到已经是全局系统命令的路径/usr/local/sbin下#

source /etc/profile

echo $PATH

mysql 测试登录，默认没有密码

mysqladmin -u root password 'ye123456' 设置root密码

设置完成root密码后需要对MYSQL进行安全配置

注：如遇到提示can't crate file '/tmp/*' 时需要对此目录添加权限chmod -R 1777 /tmp/