Run app on login

[Chuck Hast <wchast@gmail.com>]

Folks,
I am trying to figure out how to have a particular application start up when
a user logs in with a specified login.
Example,
User logs in with "radio"  password "hamradio"
Instead of bringing up a prompt, I want a login of radio to start up a special
application. I am sure that Linux can do it, just not quite sure how to do so.


-- 
Chuck Hast 
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."