Showing Grants For A Different User in MySQL

I suck at MySQL permissions, so usually if I need to give a user access to a database I end up googleing the basics so I can slowly work my way through getting the correct command. Usually after three or four tries I get it right.

I learned that there is a quick command to see the grants that have been run for the current user using the show grants command:

mysql> show grants;
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@localhost                                                                                                              |
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*passwordHashHere' WITH GRANT OPTION |
| GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION                                                                           |
+----------------------------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.04 sec)

But what if you want to see the grants for a different user? Then you can use use show grants for:

mysql> show grants for 'zenduser'@'localhost';
+-----------------------------------------------------------------------------------------------------------------+
| Grants for zenduser@localhost                                                                                   |
+-----------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'zenduser'@'localhost' IDENTIFIED BY PASSWORD '*passwordHashHere' |
| GRANT ALL PRIVILEGES ON `helpme`.* TO 'zenduser'@'localhost' WITH GRANT OPTION                                  |
+-----------------------------------------------------------------------------------------------------------------+
2 rows in set (0.00 sec)

This way I just need to copy and paste the correct line (after a few modifications) and I only need to look at another server!