Can't install drupal

Hi

I follow the instructions here :

https://www.digitalocean.com/community/tutorials/how-to-install-drupal-o…

And get this :

[[email protected]-512mb-nyc3-01 ~]# mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2)
[[email protected]-512mb-nyc3-01 ~]#

What is the password ?

After searching the web an hour, can’t find any solution.
Not even in drupal.org

Thanks.

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed