安装了mysql, 使用命令mysql -u root -p 弹出Can ‘t connect to local MySQL server through socket ‘/tmp/mysql.sock ‘(2) "。
创建软链接即可。
[root@localhost tmp]# ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
[root@localhost tmp]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.6.41 MySQL Community Server (GPL)
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Can 't connect to local MySQL server through socket '/tmp/mysql.sock '(2) "
原文：https://www.cnblogs.com/myibm/p/9488603.html