Markdown Lucky Link from DuckDuckGo

luckyduck.rb

#!/usr/bin/ruby
# Where have all the search API's gone, long time passing
# Where have all the search API's gone, long time ago
# Where have all the search API's gone, gone to graveyards every one
# When will they ever learn?
# 
# Inelegantly uses DuckDuckGo's "\" lucky link search and 
# scrapes the url from the redirect in the result
#
# $ luckyduck.rb "search term"

require 'cgi'

query = ARGV[0]
res = %x{curl -LSs http://duckduckgo.com/?q=%5C#{CGI.escape(query)}}
url = res.match(/window.location.replace\('(.*?)'\)/)

print "[#{query}](#{url[1]})" unless url.nil?