安装mysql但是从来没启动过，今天一启动就报错：
Can‘t connect to local MySQL server through socket ‘/tmp/mysql.sock‘ (2)
其实是mysql服务没起来。。。
localhost:~ miaoying$ mysql.server start
Starting MySQL
... SUCCESS!
然后再去sudo mysql就行了
Mac端解决：Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
原文：https://www.cnblogs.com/miaoying/p/10352893.html