gr33n7007h

class Demo
  def self.a_class_method
    puts "Running a class method, self is: #{self.inspect}"
  end
 
  def an_instance_method
    puts "Running an instance method, self is: #{self.inspect}"
  end
end
 

gr33n7007h

#!/usr/bin/env ruby

require 'socket'

def random_hostnames
  loop do
    begin
      octets = Array.new(4) { rand(255) }
      hostname = Socket.gethostbyaddr(octets.pack('C4')).first
      puts "IP: #{octets.join('.')} -> Hostname: #{hostname}"

gr33n7007h

#!/usr/bin/env ruby

require 'net/http'
require 'thread'

class GemCalc

  ServiceUri = "https://rubygems.org/api/v1/gems/"

  def initialize

gr33n7007h

#!/usr/bin/env ruby

# man ioctl_list | grep KDSETLED
KDSETLED = 0x00004B32

begin
  # needs root privs
  loop{ open('/dev/console').ioctl(KDSETLED, rand(0..8)) } 
rescue Errno::EACCES
  STDERR.puts "needs root privs to run"

gr33n7007h

Abu Dhabi
Abuja
Accra
Adamstown
Addis Ababa
Algiers
Alofi
Amman
Amsterdam
Andorra la Vella

gr33n7007h

#!/usr/bin/env ruby

require 'optparse'
require 'ostruct'
require 'uri'

begin
  require 'typhoeus'
rescue LoadError => e
  e.message.match(/--\s(.+)/)

gr33n7007h

#!/usr/bin/env lua

local socket = require('socket')
local s = assert(socket.tcp())

s:connect('www.google.co.uk', 80)
s:send('GET /robots.txt HTTP/1.1\r\n\r\n')

while true do
  local line = s:receive('*l') 

gr33n7007h

#!/usr/bin/env ruby

require 'fiddle'
require 'fiddle/import'
include Fiddle

@libc  = "/usr/lib64/libc.so.6" # location of shared object file on Arch Linux
TC = TrueClass.dup
FC = FalseClass.dup
PR_SET_NAME = 15 # set process name (from /usr/include/linux/prctl.h)

gr33n7007h

Creating a multiboot USB-Stick
==============================

Short notes on how to create a multiboot capable  USB-Stick with efi/bios support,
a Windows usable data partiton and a System Rescue CD boot entry.

Creating the partition table
------------------------------

Use gdisk to create a new empty gpt table with protective mbr.

gr33n7007h

#!/usr/bin/env ruby

v = %|%d bottle%s of beer on the wall, %d bottle%s of beer\ntake one down, pass it around, %d bottle%s of beer on the wall.\n\n|
s = -> (i) { i != 1 ? ?s : '' }
99.step(1, -1).each { |i| puts v % [i, s[i], i, s[i], i-1, s[i-1]] }