mysql> select authentication_string from mysql.user where User = 'root';
+-----------------------+
| authentication_string |
+-----------------------+
| NULL                  |
+-----------------------+
1 row in set (0.00 sec)

mysql> ^DBye
root@rtek:/home/b/work/profile-wizard# exit
~/w/profile-wizard ❯❯❯ mysql -u root -p                                                                                                                              master ⬆
Enter password:
ERROR 1698 (28000): Access denied for user 'root'@'localhost'
~/w/profile-wizard ❯❯❯                                                                                                                                              ⏎master ⬆