Humoud

Note: dm is an alias for docker-machine

List Machines

dm ls

Create Docker Machine

dm create -d virtualbox hello-world

View Machine's Env Vars

dm env hello-world

Humoud

General Commands

To reset a database (The closest thing to dropping a DB):

heroku pg:reset DATABASE --confirm db-name

Pushing you local database with it's data:

heroku pg:push local-db-name heroku-db-name --app app-name

Rails Specific Commands

Runing migrations and seed script on the database

heroku run rake db:migrate

Humoud

<?php
  ###
  # NOTE: This code won't work with PHP 7.
  #       MySQL is deprecated and will be removed in PHP 7 checkout MySQLi.
  ###
  ##############  JUST FILL THESE VARIABLES ######
  $dbname = 'name'; # Name of the Database in the MySQL Server
  $dbuser = 'user'; # User name of the database in MySQL
  $dbpass = 'pass'; # Password for the user of in database in MySQL
  $dbhost = 'host'; # url/link to database

Humoud

# This URL was useful: https://gist.github.com/iangreenleaf/b206d09c587e8fc6399e

############################################################
    ################### ROUTES ####################
############################################################
get 'welcome/home', to: 'welcome#home' # HTTP GET /welcome/home to controller: welcome action(Method): home.
# Should have controller WelcomeController < ApplicationController
# controller should have action(Method) home
# should have a template (view) in app/views/welcome/home.html.erb

Humoud

Detect all Arabic Characters:

/[\u0600-\u06ff]|[\u0750-\u077f]|[\ufb50-\ufbc1]|[\ufbd3-\ufd3f]|[\ufd50-\ufd8f]|[\ufd92-\ufdc7]|[\ufe70-\ufefc]|[\uFDF0-\uFDFD]/

Summary:

  Arabic (0600—06FF, 225 characters)

  Arabic Supplement (0750—077F, 48 characters)

Humoud

/*
 To run this:
 open command prompt execute 'swipl'
 then run ['path/to/this/file.pl'].
 then query away.
*/

% FACTS
likes(jana, omar).
likes(omar, jana).

Humoud

// Here we demonstrate functions in swift
// Concentrating on three points:
//  * Pass-by-Value
//  * Pass-by-Reference
//  * External Name / Internal Name
//
// Drop this in a playground to see instant results.


func combineStr(str1: String, str2: String) -> String {

Humoud

// Here we demonstrate working with Optionals in Swift
// in Swift, Optionals are basically the type which is allowed to hold (reference to be more accurate) a null (nil).

// We use "?" to declare an optional
var age: Int?

if age == nil {
    // Since age is nil
    // This will be executed
    print("There is no age")

Humoud

#!/usr/bin/env ruby
# Full Contol on Ethnet, IP & TCP headers. Play with it ;)
# to test it: nc -lvp 4444
# as root: tcpdump  -nvvvv 'tcp port 4444' -i wlan0  # change wlan0 to your interface
# or use packetfu to monitor as tcpdump
# on OSX exchange wlan0 to en0
## cap = PacketFu::Capture.new(:iface => 'wlan0' , :promisc=> true)
## cap.show_live(:filter => 'tcp and port 4444')
# libpcap should be installed
# gem install pcaprub packetfu

Humoud

class GraphqlController < ApplicationController
  skip_before_action :verify_authenticity_token

  def query
    result_hash = Schema.execute(params[:query], variables: params[:variables])
    render json: result_hash
  end
end