Scraping the totalMarketValue of your E*Trade account. Probably could be better. You pass in your username/password as arguments to the script.

etrade.rb

require 'mechanize'

a = Mechanize.new

a.get('https://us.etrade.com/home') do |page|

  mypage = page.form_with(:action => '/login.fcc') do |f|
    f.USER = ARGV[0]
    f.PASSWORD = ARGV[1]
  end.click_button

end

body = a.get("https://us.etrade.com/e/t/stockplan/overview?ploc=c-MainNav").body
result = body.split("\n").grep(/summaryWidget\.totalMarketValueRaw/).first

value = result.strip!.split(" = ")[1].gsub(/[";]/, '')

puts value