Irbc file - setting up Jruby on fedora

Hi I am following a guide to setup jruby on fedora.
http://kenai.com/projects/jruby/pages/GettingStarted

Jruby is working and is installed to /op/jruby the guide then states;

To enable tab completion within jirb, add the following line to the
configuration file .irbrc:

require ‘irb/completion’

Where is the irbc file I am looing but i must be blind I can see it.

Sayth

If this is your first time, it doesn’t exist. Create one in your home
directory.

On Sat, May 7, 2011 at 10:10 PM, Hirotsugu A. [email protected]
wrote:

configuration file .irbrc:

Oh, At least I am not going blind just yet.