FATAL: unable to change mysql root password: SQLSTATE[HY000] [2002] can't connect to local MySQL server through socket '/var/lib/mysql.sock' (2) code example
Example: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.s
> ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
>
> service mysql start or service mysql start