gistfile1.rb

#!/usr/bin/env ruby

# find first followers

require 'rubygems'
require 'twitter'

begin
	USERNAME = ARGV[0].to_s
	
	if ARGV.blank?
		raise "please provide a username"
	end
end

user = Twitter.user(USERNAME).id

puts "getting first followers for #{USERNAME} (id #{user}).."

# followers is an array of follower ids from most recent to oldest.
# reverse it to get first to last

followers = Twitter.follower_ids(user).reverse!
first_followers = followers[0..24]

#get first 25 follower usernames

screen_names = []

first_followers.each do |follower|

	uname = Twitter.user(follower).screen_name
	screen_names << uname

end

p screen_names