mysql: Show GRANTs for all users

MySQL's SHOW GRANTS shows the permissions of the current user.

Is there a way to log in as root and show the permissions of all users?

select * from information_schema.user_privileges;

EDIT:

As mentioned by Shlomi Noach:


It does not list database-specific, table-specific, column-specific,
routine-specific privileges. Therefore, the grant GRANT SELECT ON
mydb.* TO myuser@localhost does not show in
information_schema.user_privileges. The common_schema solution
presented above aggregates the data from user_privileges and other tables
to give you the full picture.

StackExchange Database Administrators Q#23265, answer score: 125