Ruby Command Line Utility Boilerplate

boilerplate.rb

#!/usr/local/bin/ruby
puts "Running application"

class App

  def initialize(args)
  end

  def action(input)
    "input was #{input}"
  end
end

app = App.new(ARGV[0] || 'Default')

while(true)
  print 'input> '
  input = gets.strip
  unless input==""
    exit if input=="exit" || input=="quit"
    puts app.action(input)
  end
end