Ruby debugger

Hi.

I’m trying out ruby debugging. If in irb I write:
require ‘debug’
I get the rdb prompt.
How do I start debugging some ruby file ?
If I write
require ‘ruby-debug’
I get ‘true’ but how to start the debugger ?

Thanks
Haris

require ‘ruby-debug’
I get ‘true’ but how to start the debugger ?

debugger

like

require ‘ruby-debug’

debugger