ubuntu 16.04 卸载mysql_ubuntu16.04 彻底卸载MySQL

sudo apt-get autoremove --purge mysql-server-5.7

#sudo apt-get remove mysql-server # 没用到,已经没有mysql-server

#sudo apt-get autoremove mysql-server # 没用到,已经没有mysql-server

sudo apt-get remove mysql-common

sudo rm -rf /etc/mysql/ /var/lib/mysql #很重要

#清理残留数据

dpkg -l |grep ^rc|awk '{print $2}' |sudo xargs dpkg -P

sudo apt autoremove

sudo apt autoreclean

安装MySQL:

sudo apt-get install mysql-server

sudo apt-get install mysql-client

sudo apt-get install libmysqlclient-dev

启动、关闭服务和查看运行状态

sudo service mysql start

sudo service mysql stop

sudo service mysql status