Cron job calling Ruby script to interact with rails code

I’m really naive on this subject, forgive me. I need to write a cron
job
that will run a ruby script. The script needs to be able to access my
rails
code. What do I need to include/require in a .rb file to get access to
teh
same stuff as script/console? And where does this file have to live?

thanks!

./script/runner


Zack C.
http://depixelate.com