Question about Capistrano file

In this link #133 Capistrano Tasks - RailsCasts

It shows what would be call capistrano.txt that you have to modify. It shows

Directory Structure

  myapp/releases   myapp/current -> releases/20081019001122   myapp/shared

cap deploy

  deploy:update_code   deploy:symlink_shared   deploy:symlink   deploy:restart

I can't find this file for the life of me. I've deployed without touching this files but It has to be somewhere. Anyone know where I find this file?

You want config/deploy.rb.