进入linux后启动mysql

mysql -u root -p

报错 

Can't connect to local MySQL server through socket '/var/lib   /mysql/mysql.sock' (111)

进入报错出现的路径 

cd /var/lib/mysql/ 

找到文件mysql.sock,并且删除 

rm -rf mysql.sock 

然后停止mysql服务 

systemctl stop mysqld 

再重启mysql服务 

systemctl start mysqld 

然后就可以了登入mysql查看是否正常登入 

mysql -u root -p