mcshadow:~$mysql --user=mcshadow --password=mike
mysql> select current_user();
+----------------+
| current_user() |
+----------------+
| mike@localhost |
+----------------+
mcshadow:~$mysql --user=mcshadow --password=root
mysql> select current_user();
+----------------+
| current_user() |
+----------------+
| root@localhost |
+----------------+

mike:~$mysql --user=mcshadow --password=mike
ERROR 1698 (28000): Access denied for user 'mcshadow'@'localhost'

^{mysqld: User:mcshadow TRY access from:localhost with privileges:mike
mysqld: User:mcshadow SUCCESS access from:localhost with privileges:mike
mysql: SYSTEM_USER:'mcshadow', MYSQL_USER:'mcshadow', CONNECTION_ID:5, DB_SERVER:'--', DB:'--', COMMAND_RESULT:SUCCESS, QUERY:'select current_user();'
mysqld: User:mcshadow TRY access from:localhost with privileges:root
mysqld: User:mcshadow SUCCESS access from:localhost with privileges:root
mysql: SYSTEM_USER:'mcshadow', MYSQL_USER:'mcshadow', CONNECTION_ID:6, DB_SERVER:'--', DB:'--', COMMAND_RESULT:SUCCESS, QUERY:'select current_user();'
mysqld: User:mcshadow TRY access from:localhost with privileges:mike
mysqld: User:mcshadow FAILED access from:localhost with privileges:mike}