sorted_friends_and_followers.rb

require 'twitter'

# your Twitter credentials
twitter_username = ''
twitter_password = ''

# the user you'd like to check friends / followers for. Set to nil, or omit for your own list
search_user = ''

client = Twitter::Base.new(twitter_username,twitter_password)

sorted_friends = client.friend_ids.map {|id| c.user(id).screen_name}.sort
sorted_friends = client.follower_ids.map {|id| c.user(id).screen_name}.sort