scrapes the top alexa sites. For http://hackerstreet.in/item?id=17578

scrape.alexa.rb

##
# How to run:
#   ruby scrape.alexa.rb
#
# Output:
#   20 files each with the data in csv format
#
# Dependencies:
#   ruby version > 1.9  # "ruby -v" to check
#   nokogiri gem        # "gem install nokogiri" to install
##


require 'nokogiri'
require 'open-uri'
require 'csv'

def bar(li)
  begin
    site_name=li.css(".desc-container h2 a")[0].content
    site_link=li.css(".desc-container .topsites-label")[0].content
    site_rank = li.css(".count")[0].content
    [site_rank, site_link, site_link]
  rescue
    []
  end
end

def foo1(url)
  doc = Nokogiri::HTML(open(url))
  listings=doc.css(".site-listing")
  output = listings.collect{|li| bar(li) }
end

def foo2(data, i)
  CSV.open("alexa-#{i}","w") do |csv|
    data.each{|o| csv << o}
  end
end

urls = (1..20).to_a.map{|i| "http://www.alexa.com/topsites/countries;#{i}/IN "}
urls.each_with_index do |url,i|
  data=foo1(url)
  foo2(data,i)
end  

Hey there @zerothabhishek currently this script is spitting out 20 empty files. Any ideas how to get it working?