Fetch field names and descriptions from NCBI GEO database

gdsinfo.rb

#!/usr/bin/ruby

require 'rubygems'
require 'hpricot'
require 'open-uri'

doc = Hpricot(open("http://eutils.ncbi.nlm.nih.gov/entrez/eutils/einfo.fcgi?db=gds"))

(doc/'//fieldlist/field').each do |f|
  puts "#{(f/'/name').inner_html},#{(f/'/fullname').inner_html},#{(f/'description').inner_html}"
end