gistfile1

#!/usr/bin/env ruby

=begin

Author: Gigamo <gigamo@gmail.com>

This script generates a passphrase consisting of <size> letters in the start
and <nums> numbers in the end. Every even size it will use a vowel, uneven
will use a consonant.

=end

class Password
  def self.run
    $timestamp = Time.now.strftime("%Y %b %d %T")
    $passphrase = generate 6, 2

    puts " :  Generated : #{$timestamp} for user #{ENV['USER']}"
    puts " : Passphrase : #{$passphrase}"

    puts "\n\n"
    puts 'WARNING: Your scrollback buffer contains this passphrase, please nuke this term'
  end

private
  include Enumerable

  @vwl = %w(a e i o u)
  @con = %w(b c d f g h j k l m n p r s t v w y z)
  @num = %w(0 1 2 3 4 5 6 7 8 9)

  def self.generate(size=6, nums=2)
    @newpass = ''

    1.upto(size) do |i|
      i % 2 == 0 ? @newpass << @vwl[rand(@vwl.size-1)] : @newpass << @con[rand(@con.size-1)]
    end

    1.upto(nums) do |a|
      @newpass << @num[rand(@num.size-1)]
    end

    @newpass
  end
end

Password.run if $0 == __FILE__