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  • Linux下卸载安装mysql

    1、卸载命令:# rpm -qa |grep -i mysql 

      # yum remove mysql-community mysql-community-server mysql-community-libs mysql-community-common

    2、安装:# wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

      # yum localinstall mysql57-community-release-el7-8.noarch.rpm

      # yum install mysql-community-server

    3、启动 :# systemctl start mysqld

      重启:# systemctl restart mysqld

      关闭:# systemctl stop mysqld

      设置开机自启 # systemctl enable mysqld

             # systemctl daemon-reload

    4、查看默认密码:# grep 'temporary password' /var/log/mysqld.log

      注:可修改密码策略(不然密码需要包括大小写、数字、特殊符号)

      # vim  /etc/my.cnf

      添加:validate_password = off

      # systemctl restart mysqld

    5、登录:#  mysql -uroot -p

      修改密码:mysql> set password for 'root'@'localhost'=password('123123'); 

      添加远程账号:mysql> GRANT ALL PRIVILEGES ON *.* TO 'home'@'%' IDENTIFIED BY '123123' WITH GRANT OPTION;

    7、配置默认编码utf-8:# vim /etc/my.cnf

      添加:   character_set_server=utf8

          init_connect='SET NAMES utf8'

    8、默认配置文件路径: 

      配置文件:/etc/my.cnf 

      日志文件:/var/log//var/log/mysqld.log 

      服务启动脚本:/usr/lib/systemd/system/mysqld.service 

      socket文件:/var/run/mysqld/mysqld.pid

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  • 原文地址:https://www.cnblogs.com/wu-wu/p/10146826.html
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