myapp.rb

require 'rubygems'
require 'commander/import'

program :name, 'myapp'
program :version, '0.0.1'
program :description, 'test'

command :init do |c|
  c.syntax = 'myapp init [options]'
  c.summary = ''
  c.description = ''
  c.example 'description', 'command example'
  c.option '--some-switch', 'Some switch that does something'
  c.action do |args, options|
    puts "init called"
  end
end

command :second do |c|
  c.syntax = 'myapp second [options]'
  c.summary = ''
  c.description = ''
  c.example 'description', 'command example'
  c.option '--some-switch', 'Some switch that does something'
  c.action do |args, options|
    puts "second called"
  end
end