mysql commands on users

mysql> select user,host from mysql.user;
+---------+-----------------+
| user    | host            |
+---------+-----------------+
| root    | 127.0.0.1       |
| root    | linuxhost.local |
| newuser | localhost       |
| root    | localhost       |
+---------+-----------------+
4 rows in set (0.14 sec)


mysql> show grants for 'root'@'localhost';
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@localhost                                                                                                              |
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*84BB5DF4823DA319BBF86C99624479A198E6EEE9' WITH GRANT OPTION |
+----------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.09 sec)

mysql> show grants for 'root'@'linuxhost.local';
+----------------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@linuxhost.local                                                                                                              |
+----------------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'linuxhost.local' IDENTIFIED BY PASSWORD '*84BB5DF4823DA319BBF86C99624479A198E6EEE9' WITH GRANT OPTION |
+----------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> show grants for 'root'@'127.0.0.1';
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@127.0.0.1                                                                                                              |
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'127.0.0.1' IDENTIFIED BY PASSWORD '*84BB5DF4823DA319BBF86C99624479A198E6EEE9' WITH GRANT OPTION |
+----------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)