二进制安装mysql

1.1 MySQL安装介绍

mysql软件下载地址信息： www.mysql.com   mirrors.sohu.com

mysql软件下载完毕后，查看mysql解压后目录文件大小

1.下载解压mysql二进制软件包

链接：https://pan.baidu.com/s/145F-0VyaQ9C_-Xy8kNZLug 密码：cojx

下载解压MySQL二进制软件包

tar xf mysql-5.6.34-linux-glibc2.5-x86_64.tar.gz

2.MySQL程序运行时的管理用户

useradd -s /sbin./nologin -M mysql
id mysql
[root@web01 ~]# id mysql
uid=501(mysql) gid=501(mysql) groups=501(mysql)

3.mysql解压后的程序包搬家到程序目录下，并进行重命名

useradd -s /sbin./nologin -M mysql
id mysql
[root@web01 ~]# id mysql
uid=501(mysql) gid=501(mysql) groups=501(mysql)

4.为mysql服务程序创建软链接

ln -s /application/mmysql-5.6.34/ /application/mysql
[root@web01 tools]# ln -s /application/mysql-5.6.34/ /application/mysql
[root@web01 tools]# ll /application/mmysql
lrwxrwxrwx 1 root root 27 May 22 23:39 /application/mysql -> /application/mysql-5.6.34/

5.让mysql用户管理 /application/mysql/

chown -R mysql.mysql /application/mysql/
[root@web01 application]# ll
total 4
lrwxrwxrwx  1 root  root    13 May 22 23:46 mysql -> mysql-5.6.34/
drwxr-xr-x 13 mysql mysql 4096 May 22 23:46 mysql-5.6.34

　　

6.初始化数据库

#1. 确认软件安装在哪里

#2. 确认数据存放在哪里

#3. 确认MySQL使用的用户谁？

/application/mysql/scripts/mysql_install_db --basedir=/application/mysql --datadir=/application/mysql/data --user=mysql
[root@web01 application]# /application/mysql/scripts/mysql_install_db --basedir=/application/mysql --datadir=/application/mysql/data --user=mysql
To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system
mysql启动脚本 默认放在support-files/mysql.server  

记得给MySQL设置个密码
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/application/mysql/bin/mysqladmin -u root password 'oldboy123'
/application/mysql/bin/mysqladmin -u root -h web01 password 'new-password'

mysql5.7
cd /application/mysql/
./bin/mysqld --initialize --user=mysql --basedir=/application//mysql --datadir=/application/mysql/data

7.复制启动脚本 授权

cp /application/mysql/support-files/mysql.server  /etc/init.d/mysqld
chmod +x /etc/init.d/mysqld
默认启动脚本放在的位置
加执行权限　

8.修改启动脚本 和 mysql命令中的路径

 sed -i 's#/usr/local/mysql#/application/mysql#g' /application/mysql/bin/mysqld_safe /etc/init.d/mysqld

9. 复制默认的配置文件

   cp /application/mysql/support-files/my-default.cnf  /etc/my.cnf 

/etc/init.d/mysqld start
至此，mysql数据库安装与启动完成；可以检测进程和服务端口，确认mysql服务是否启动正确

[root@web01 application]# netstat -lntup |grep mysql
tcp        0      0 :::3306                     :::*                        LISTEN      7725/mysqld

扩展：讲解管理mysql数据库      

10.进入与退出mysql数据库方法：

/application/mysql/bin/mysql
扩展知识：登录数据库命令简化方法
echo 'export PATH=/application/mysql/bin:$PATH' >>/etc/profile
source /etc/profile
which mysql
退出数据库时，尽量不要用ctrl+c进行退出mysql 用ctrl+d进行退出
[root@web01 application]# echo $PATH
/application/mysql/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

11.设置mysql服务开机自启动    

####11.加入开机自启动
chkconfig --add mysqld 
chkconfig mysqld on

12.设置mysql数据库登录用户名与密码

SET PASSWORD FOR 'root'@localhost=PASSWORD('Your Password');

####12.给MySQL root用户设置密码
/application/mysql/bin/mysqladmin -u root password '123456'
mysql -uroot -p123456

[root@web01 application]# mysql -uroot -p123456
Warning: Using a password on the command line interface can be insecure.
[root@web01 application]# mysql -uroot -p123456
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 3
Server version: 5.6.34 MySQL Community Server (GPL)

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