bottles_of_beer.rb

#!/usr/bin/env ruby
require "twitter"

# Twitter client configuration
client = Twitter::REST::Client.new do |config|
  config.consumer_key = YOUR_KEYS_HERE
  config.consumer_secret = YOUR_KEYS_HERE
  config.access_token = YOUR_KEYS_HERE
  config.access_token_secret = YOUR_KEYS_HERE
end

bottles = 99

loop do
  if bottles > 2
    text = "#{bottles} bottles of beer on the wall, #{bottles} bottles of beer.\nTake one down and pass it around, #{bottles - 1} bottles of beer on the wall."
    bottles -= 1
  elsif bottles > 1
    text = "#{bottles} bottles of beer on the wall, #{bottles} bottles of beer.\nTake one down and pass it around, #{bottles - 1} bottle of beer on the wall."
    bottles -= 1
  elsif bottles > 0
    text = "#{bottles} bottle of beer on the wall, #{bottles} bottle of beer.\nTake one down and pass it around, no more bottles of beer on the wall."
    bottles -= 1
  elsif bottles == 0
    bottles = 99
    text = "No more bottles of beer on the wall, no more bottles of beer.\nGo to the store and buy some more, #{bottles} bottles of beer on the wall."
  end
  
  client.update text
  sleep 15
end