(Quick Reference)
                create-service
Purpose
The 
create-service command creates a Grails service class and associated unit test for the given base name.
Examples
grails create-service org.bookstore.book
Description
Creates a service for the give base name. For example for a base name 
org.bookstore.book a service called 
BookService will be created in the 
grails-app/services/org/bookstore directory.
A service class encapsulates business logic and is delegated to by controllers to perform the core logic of a Grails application. For more information on services refer to the section on 
Services in the user guide.
Note that this command is just for convenience and you can also create services in your favorite text editor or IDE if you choose.
Usage:
grails create-service [name]
Fired Events:
- CreatedFile- When the service has been created