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#!/bin/bash

# Specify the desired volume size in GiB as a command-line argument. If not specified, default to 20 GiB.
SIZE=${1:-20}

# Get the ID of the environment host Amazon EC2 instance.
INSTANCEID=$(curl http://169.254.169.254/latest/meta-data//instance-id)

# Get the ID of the Amazon EBS volume associated with the instance.
VOLUMEID=$(aws ec2 describe-instances \

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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#!/bin/sh

rubyversion=1.9.2-p290
rubysrc=ruby-$rubyversion.tar.bz2
checksum=096758c3e853b839dc980b183227b182
destdir=/tmp/install-$rubyversion

sudo apt-get -y install libssl-dev

gem list -i fpm || sudo gem install fpm

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#!/usr/bin/env ruby

require 'open-uri'

class UrlFetcher
  def self.fetch(url)
    returnval = nil
    begin
      open(url) {|stream| returnval = stream.read}
    rescue

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class Module
  def attr_flag(*args)
    args.each do |sym|
      module_eval <<-EOS
        attr_writer :#{sym}
        def #{sym}?
          @#{sym}
        end
      EOS
    end

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class Array
  def sum
    inject(0.0) { |result, el| result + el }
  end

  def mean
    sum / size
  end
end

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require 'processor.rb'

task :parse do
  p = Processor.new
  p.parse
end

task :default => :parse

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class Array
  def my_each
    length.times do |index|
      yield(self[index])
    end
  end

  def my_inject(initial_value)
    accumulator = initial_value || self.dup.shift
    my_each do |item|

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class Array
  def sum
    inject(0.0) { |result, el| result + el }
  end

  def mean
    sum / size
  end
end

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SICP Exercise 1.1

> 10
10
> (+ 5 3 4)
12
> (- 9 1)
8
> (/ 6 2)
3