gistfile1.txt

#!/usr/bin/env ruby

require 'slop'

opts = Slop.parse do
  banner "Usage: ruby foo.rb [options]\n"

  on :n, :name, 'Your username', true
  on :a, :age,  'Your age (optional)', :optional => true
  on :V, :verbose, 'Run in verbose mode', :default => false
  on :P, :people, 'Some people', true, :as => Array

  on :h, :help, 'Print this help screen' do
    puts help
  end
end

# ruby foo.rb --name 'Lee Jarvis' -V --people john,phillip,dan

p opts.name?      #=> true
p opts[:name]     #=> "Lee Jarvis"

p opts.age?       #=> false
p opts[:age]      #=> nil

p opts.verbose?   #=> true

p opts[:people]   #=> ["john", "phillip", "dan"]

# grab an Option object
p opts.options[:people].description #=> "Some people"