[rt-users] Custom Fields in Scripts and Templates

[Sysadmin]

What is the correct syntax for inserting custom field data into scripts 
and templates? We have a service queue with a custom field (type of 
ticket = locate or repair).
So, I want to create a script to read the type of ticket then dispatch 
an email with custom field data inserted in the email i.e. Service # 
Account# etc.

Thanks,

David
System Admin
RNS