test_me_on.rb

# Load the authors from a text file of names, with one on each line...
path = ARGV[0]
authors = File.read(path).lines

# ...or just define them inline
authors = %w(foo bar baz)

def test_me_on(authors)
  starred = []

  authors.shuffle.each_with_index do |author, index|
    puts "#{index + 1}/#{authors.count}. #{author}"
    starred.push(author) if $stdin.gets.chomp == "*"
  end

  puts "*** And now for some of them again... ***\n"
  test_me_on(starred)

  puts "*** All done! ***"
end