Get a breakdown of wifi protocol usage. Assumes wireless interface accessible at "wlan0".

PLAYDOUGH_PROTOCOLS.rb

#!/usr/bin/env ruby
require 'json'
wifi = `iwlist wlan0 scan`
pieces2ghz = wifi.split("Cell ")[1..-1]

data = pieces2ghz.map{ |x| [ (x.split('Protocol:')[1].split("\n")[0] rescue '[UNKNOWN]') ] }

protocols = data.reduce({}) do |protocols, x|
   protocols[x[0]] = protocols[x[0]] ? protocols[x[0]] + 1 : 1
   protocols
end

puts protocols.to_json.gsub(/"/, "'")