lchanmann

require 'rest_client'

url = 'http://geochat.instedd.org/api/groups/YOURGROUP/messages.rss'
res = RestClient::Resource.new url, 'LOGIN', 'PASSWORD'

res.post :message => '#ping'

lchanmann

require 'rubygems'
require 'haml'
require 'sinatra'
require 'sinatra/flash'
require 'file_uploader'

enable :sessions

get '/' do
  haml :index

lchanmann

require 'rubygems'
require 'thor'

class HelloCli < Thor
  desc "hi", "Say hi"
  def hi
    puts "hi !"
  end

  desc "bye", "Say goodbye"

lchanmann

cat /dev/null > "$logFile"

lchanmann

sed = myfile | paste -s -d '\t\n' - -

lchanmann

Chapter 1 - Object Oriented Design

The purpose of design is to allow you to do design later, and it's primary goal is to reduce the cost of change.

SOLID Design:

• Single Responsibility Principle: a class should have only a single responsibility
• Open-Closed Principle: Software entities should be open for extension, but closed for modification (inherit instead of modifying existing classes).
• Liskov Substitution: Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.
• Interface Segregation: Many client-specific interfaces are better than one general-purpose interface.

lchanmann

sudo add-apt-repository ppa:tuxpoldo/munin
sudo apt-get update
sudo apt-get dist-upgrade

lchanmann

sudo apt-get build-dep munin
sudo apt-get install munin munin-node

lchanmann

sudo vi /etc/munin/munin.conf
# Search for graph_strategy and html_strategy
# Change their values to cgi

lchanmann

sudo munin-node-configure — shell — families=contrib,auto | sh -x