MySQL安装配置步骤：
1. 进入/home/oldboy/tools 执行上传mysql数据库指令并创建一个mysql用户
#rz -y上传压缩包
[[email protected] tools]# cd /home/oldboy/tools/
[[email protected] tools]# useradd -s /sbin/nologin -M mysql
[[email protected] tools]# ls
mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz
2. 解压mysql安装包
[[email protected] tools]# tar xf mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz
[[email protected] tools]# ls
mysql-5.6.35-linux-glibc2.5-x86_64 mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz
3. 移动解压出来的mysql目录到指定目录
#没有这个目录则创建 mkdir -p /application
[[email protected] tools]# mv mysql-5.6.35-linux-glibc2.5-x86_64 /application/mysql-5.6.35
[[email protected] tools]# ls /application/
mysql-5.6.35
4. 给mysql创建一个软链接
[[email protected] tools]# ln -s /application/mysql-5.6.35 /application/mysql
[[email protected] tools]# ll /application/
total 8
lrwxrwxrwx 1 root root 25 Mar 8 23:41 mysql -> /application/mysql-5.6.35
drwxr-xr-x 13 root root 4096 Mar 8 23:38 mysql-5.6.35
5. 赋予mysql安装目录中mysql软件的所属者
[[email protected] application]# chown -R mysql.mysql /application/mysql/
[[email protected] application]# ll mysql/
total 68
drwxr-xr-x 2 mysql mysql 4096 Mar 8 23:38 bin
-rw-r--r-- 1 mysql mysql 17987 Nov 28 21:36 COPYING
drwxr-xr-x 3 mysql mysql 4096 Mar 8 23:38 data
drwxr-xr-x 2 mysql mysql 4096 Mar 8 23:38 docs
drwxr-xr-x 3 mysql mysql 4096 Mar 8 23:38 include
drwxr-xr-x 3 mysql mysql 4096 Mar 8 23:38 lib
drwxr-xr-x 4 mysql mysql 4096 Mar 8 23:38 man
drwxr-xr-x 10 mysql mysql 4096 Mar 8 23:38 mysql-test
-rw-r--r-- 1 mysql mysql 2496 Nov 28 21:36 README
drwxr-xr-x 2 mysql mysql 4096 Mar 8 23:38 scripts
drwxr-xr-x 28 mysql mysql 4096 Mar 8 23:38 share
drwxr-xr-x 4 mysql mysql 4096 Mar 8 23:38 sql-bench
drwxr-xr-x 2 mysql mysql 4096 Mar 8 23:38 support-files
6. 初始化数据库
[[email protected] application]# /application/mysql/scripts/mysql_install_db --basedir=/application/mysql --datadir=/application/mysql/data --user=mysql
Installing MySQL system tables...2017-03-08 23:50:31 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
…………
WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server
7. 复制mysql安装目录下的脚本去linux系统服务并给执行权限
[[email protected] application]# cp /application/mysql/support-files/mysql.server /etc/init.d/mysqld
[[email protected] application]# chmod +x /etc/init.d/mysqld
[[email protected] application]# ll /etc/init.d/mysqld
-rwxr-xr-x 1 root root 10875 Mar 8 23:51 /etc/init.d/mysqld
8. 替换配置文件
[[email protected] application]# sed -i ‘s#/usr/local/mysql#/application/mysql#g‘ /application/mysql/bin/mysqld_safe /etc/init.d/mysqld
9. 覆盖原来的配置文件
[[email protected] application]# \cp /application/mysql/support-files/my-default.cnf /etc/my.cnf
10. 启动mysql服务
[[email protected] application]# /etc/init.d/mysqld start
Starting MySQL.Logging to ‘/application/mysql/data/localhost.err‘.
SUCCESS!
[[email protected] application]# lsof -i:3306 #MySQL默认端口3306
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
mysqld 5189 mysql 10u IPv6 30071 0t0 TCP *:mysql (LISTEN)
11. PATH路径和开机自启动
[[email protected] application]# echo ‘export PATH=/application/mysql/bin:$PATH‘ >>/etc/profile
[[email protected] application]# source /etc/profile
[[email protected] application]# which mysql
/application/mysql/bin/mysql
[[email protected] application]# chkconfig --add mysqld
[[email protected] application]# chkconfig mysqld on
[[email protected] application]# chkconfig --list|grep mysqld
mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off
12. 给MySQL root用户设置密码
[[email protected] application]# /application/mysql/bin/mysqladmin -u root password ‘oldboy123‘
Warning: Using a password on the command line interface can be insecure. #这个只是一个警告，原因是在命令行输入密码！
测试是否能登陆
[[email protected] application]# mysql -uroot -poldboy123
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 2
Server version: 5.6.35 MySQL Community Server (GPL)
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
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> quit
Bye
到这一步mysql数据库就安装成功了！MySQL常用命令如下 ↓
MySQL简单常用命令
1. 查看所有数据库：show databases;
2. 创建一个数据库：create database oldboy;
3. 删除一个数据库(危险)：drop database oldboy;
4. select user,host from mysql.user;
查询选择：select
user,host字段(列)
mysql数据库的user表格
5. 退出MySQL：quit
6. 给用户授权：grant all on wordpress.* to [email protected]‘172.16.1.%‘ identified by ‘123456‘