Mysql

---

title: “Mysql”
createTime: 2022-01-05T14:40:06+08:00
updateTime: 2022-01-05T14:40:06+08:00
draft: false
author: “name”
tags: [“mysql”]
categories: [“install”]
description: “测试的”

mysql 相关

安装 mysql 相关

1. 查看mariadb数据库 rpm -qa | grep mariadb

2. 卸载数据库：yum -y remove mari*

3. 删除数据库文件： rm -rf /var/lib/mysql/*

4. 根据某某安装

   • 根据rpm安装

   rpm -ivh mysql-community-common-5.7.24-1.el7.x86_64.rpm
   rpm -ivh mysql-community-libs-5.7.24-1.el7.x86_64.rpm
   rpm -ivh mysql-community-client-5.7.24-1.el7.x86_64.rpm
   rpm -ivh mysql-community-server-5.7.24-1.el7.x86_64.rpm
   rpm -ivh mysql-community-devel-5.7.24-1.el7.x86_64.rpm
   rpm -ivh mysql-community-libs-compat-5.7.24-1.el7.x86_64.rpm
   

   • yum 安装
     • wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
     • yum -y install mysql57-community-release-el7-10.noarch.rpm
     • yum -y install mysql-community-server

5. 启动 mysql

   • service mysqld start

6. 获取初始化密码

   • grep ‘temporary password’ /var/log/mysqld.log

7. 登陆

   • mysql -u root -p

8. 修改root的密码

   • SET PASSWORD = PASSWORD(‘Root@123123’);
   • ALTER USER ‘root’@‘localhost’ PASSWORD EXPIRE NEVER;
   • flush privileges;

9. 创建一个账号 并且给权限 （给用户top 密码 Top@123123 ）

   • GRANT ALL PRIVILEGES ON . TO ‘top’@‘%’ IDENTIFIED BY ‘Top@123123’ WITH GRANT OPTION;

安装脚本（前提有本地yum 源）

#!/bin/bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/opt/bin:/opt/sbin:~/bin
export PATH 
# Check if user is root 
if [ $(id -u) != "0" ]; then
    echo "Error: You must be root to run this script, please use root to install"
    exit 1 
fi
clear

#HOSTNAME="192.168.111.84"                                           #数据库信息
#PORT="3306"
#USERNAME="root"
#PASSWORD=""

#DBNAME="test_db_test"                                                       #数据库名称
#TABLENAME="test_table_test"                                            #数据库中表的名称

# 查看mariadb数据库：
rpm -qa | grep mariadb
#卸载数据库：
yum -y remove mari*
#删除数据库文件： 
rm -rf /var/lib/mysql/*

echo '开始安装mysql'
yum install -y mysql-community-server.x86_64
echo '安装完成mysql'
service mysqld start
ss

修改root密码 且 创建账户 (前提 mysql 启动)

echo '启动完成'
#grep 'temporary password' /var/log/mysqld.log

defaultmysqlpwd=`grep 'temporary password' /var/log/mysqld.log | awk -F"root@localhost: " '{ print $2}' `
echo $defaultmysqlpwd
mysqlpwd="Root@123123"
temp1="SET PASSWORD = PASSWORD('Root@123123');"
temp2="ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;"
temp3="flush privileges;"
temp4="GRANT ALL privileges ON ""*.*""TO 'top'@'%' IDENTIFIED BY 'Top@123123' WITH GRANT OPTION;"
echo -e ${temp1}${temp2}${temp3}${temp4}
echo '=================================================='
echo '第一个'
echo ${temp1}${temp2}${temp3}${temp4}${temp3}| mysql -u root --password=$defaultmysqlpwd -b --connect-expired-password
echo ${temp1}${temp2}${temp3}${temp4}${temp3}| mysql -u root --password=$mysqlpwd -b --connect-expired-password
echo '第二个'
echo ${temp4}| mysql -u root --password=$mysqlpwd -b --connect-expired-password
service mysqld restart

其它脚本

 #创建数据库
#create_db_sql="create database IF NOT EXISTS ${DBNAME}"
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} -e "${create_db_sql}"

#注意：-p${PASSWORD}中间不能有空格#

#创建表
#create_table_sql="create table IF NOT EXISTS ${TABLENAME} (  name varchar(20), id int(11) default 0 )"
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD}  -D ${DBNAME} -e "${create_db_sql}"

#插入数据
#insert_sql="insert into ${TABLENAME} values('billchen',2)"
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${insert_sql}"

#查询
#select_sql="select * from ${TABLENAME}"
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}"

#更新数据
createTime: 2022-01-05T14:40:06+08:00
updateTime: 2022-01-05T14:40:06+08:00
createTime: 2022-01-05T14:40:06+08:00
updateTime: 2022-01-05T14:40:06+08:00
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${select_sql}"

#删除数据
#delete_sql="delete from ${TABLENAME}"
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${delete_sql}"
#mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${select_sql}"