test

def display(number) 
	print "The number you entered on the command line is "
	if number < 0
		puts "negative"
	elsif number > 0 
		puts "positive"
	else
		puts "zero"
	end
end

my_rack_proc = lambda { |env| [200, {"Content-Type" => "text/plain"},display(ARGV[0].to_i)] } 
puts my_rack_proc.call({})

Write a Rack program that accepts an integer number from the command line. The Rack program has a method which looks at the number and then returns a string “positive”, “negative” or “zero”. The Rack program uses this method to display, for example:
200
{"Content-Type"=>"text/plain"}
The number you entered on the command line is zero

Congrats. You were the first to post the Gist URL. You can improve upon the display method. Ideally,. I will not use puts inside the method. I am sure you can modify the same.