Checks to see whether the grades for EEL4744c has been updated and emails TO@GMAIL.COM if it has :)

microp-grade-update-checker.rb

require 'net/http'
require 'net/smtp'

file = File.open("grades_current.html", "rb")
cur_source = file.read

message = <<MESSAGE_END
From: Andrew Kerr Updates <updates@andrewjkerr.com>
To: MicroP Peeps <microp@lists.ufl.edu>
Subject: MicroP Grades Updated!

The grades for Microprocessors have been updated! http://www.add.ece.ufl.edu/4744/grades.html
MESSAGE_END

updated = false

source = Net::HTTP.get('www.add.ece.ufl.edu', '/4744/grades.html')
while !updated
        if cur_source != source
                smtp = Net::SMTP.new 'smtp.gmail.com', 587
                smtp.enable_starttls
                smtp.start('gmail.com', 'GMAIL_EMAIL@GMAIL.COM', 'GMAIL_PASSWORD', :login)
                smtp.send_message message, 'FROM@GMAIL.COM', 'TO@GMAIL.COM'
                smtp.finish
                updated = 1
        end
        sleep 600
end

Nice!