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class Klass
  def initialize(number)
    self.number = number
  end
  
  attr_reader :number
  
  private
  
  attr_writer :number

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Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

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appunti su ansible

• https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-14-04

• https://sysadmincasts.com/episodes/43-19-minutes-with-ansible-part-1-4

• https://sysadmincasts.com/episodes/45-learning-ansible-with-vagrant-part-2-4

• https://sysadmincasts.com/episodes/46-configuration-management-with-ansible-part-3-4

• https://medium.com/@perwagnernielsen/ansible-tutorial-part-1-inventory-files-vagrant-and-remote-hosts-33a15b0185c0

• https://medium.com/@perwagnernielsen/ansible-tutorial-part-2-installing-packages-41d3ab28337d

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# config/environments/development.rb
...
if defined? BetterErrors
  # Force all developers on this project to use VS Code, even if they prefer something else.
  BetterErrors.editor = proc { |file, line| "subl://#{file}:#{line}"}
end

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# config/initializers/clear_dev_logs.rb

# This snippet simply clears your logs when they are too large.
# Large logs for development are usually something you don't want.
# Every time you run rails server or rails console it checks the size
# of your development logfile and truncates it.

if Rails.env.development?
  MAX_LOG_SIZE = 1.megabytes
  DEV_LOG_FILE = File.join(Rails.root, 'log', 'development.log')

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# after gems

bundle exec shelly add -o <name organitation>

# Edit cloudfile
# push edit
git push shelly master

# import production db
shelly backup import postgresql dump.sql --reset

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touch ~/.gitconfig
cat >~/.gitconfig << EOL

[color]
  diff = auto
  status = auto
  branch = auto
  ui = true
[color "status"]
  changed = yellow

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# only folder b1 under configuration 
# all others files are program files 
#
# create and use a alias bash gitconf

mkdir PROG
echo content >> PROG/readme

mkdir PROG/FOLDER_A
echo content >> PROG/FOLDER_A/filea-1

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# Copy and paste this to the rails console to test your email settings

# Rails 3.2

class TestMailer < ActionMailer::Base
  default :from => "me@mysite.com"

  def welcome_email
    mail(:to => "other@elsewhere.com", :subject => "Test mail", :body => "Test mail body")
  end

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Ruby on Rails development setup on Ubuntu 12.04

System update

# change mirror to ubuntu.osuosl.org first
sudo apt-get update

Install common libraries