标签：pre for tps links contain 启动 log文件 opera localhost
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
yum localinstall mysql57-community-release-el7-8.noarch.rpm
yum repolist enabled | grep "mysql.*-community.*"
yum install mysql-community-server
systemctl start mysqld
systemctl enable mysqld
systemctl daemon-reload
mysql安装完成之后，在/var/log/mysqld.log文件中给root生成了一个默认密码。通过下面的方式找到root默认密码，然后登录mysql进行修改：
set password for ‘root‘@‘localhost‘=password(‘password!‘);
grant all on *.* to root@‘%‘ identified by ‘password‘ with grant option;
flush privileges;
卸载
采用yum安装mysql后，如果想要完全卸载mysql，可以采用如下方式：
1、查看mysql安装了哪些东西
rpm -qa |grep -i mysql
2、开始卸载
yum remove mysql-community-common-5.7.20-1.el7.x86_64
yum remove mysql-community-client-5.7.20-1.el7.x86_64
yum remove mysql57-community-release-el7-11.noarch
yum remove mysql-community-libs-5.7.20-1.el7.x86_64
yum removemysql-community-server-5.7.20-1.el7.x86_64
3、查看是否卸载完成
4、查找mysql相关目录
find / -name mysql
5、删除相关目录
rm -rf
6、删除/etc/my.cnf
rm -rf /etc/my.cnf
7、删除/var/log/mysqld.log（如果不删除这个文件，会导致新安装的mysql无法生存新密码，导致无法登陆）
rm -rf /var/log/mysqld.log标签：pre for tps links contain 启动 log文件 opera localhost
原文地址：https://www.cnblogs.com/qj696/p/12147202.html
