#!/usr/bin/env ruby
require 'gmail'

throw "Wojtek nie psuj" if ARGV.length < 3

username = ARGV[0]
password = ARGV[1]
from     = ARGV[2]

Gmail.connect(username, password) do |gmail|
  mails = gmail.inbox.emails(:read, :from => from)
  mails.map{|mail| puts; puts mail.body}
end