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#To check which programs are running on which ports
sudo lsof -i :80 # checks port 80

          COMMAND   PID          USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
          haproxy 32850          root    4u  IPv4 0xf27d639a63f41339      0t0  TCP *:http (LISTEN)

#To watch changes to a given folder
#To install this command on mac check out this link: http://osxdaily.com/2010/08/22/install-watch-command-on-os-x
watch -d ls -l 

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var flight = {
    airline: "Oceanic",
    number: 815,
    //you can have nested objects
    departure: {
        IATA: "SYD",
        time: "2004-09-22 14:55",
        city: "Sydney"
    },
    arrival: {

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//Reflection
//"typeof" does it for you
console.log(typeof flight.number);      // 'number'
console.log(typeof flight.arrival);     // 'object'
console.log(typeof flight.manifest);    // 'undefined'
console.log(typeof flight.toString);    // 'function'
console.log(typeof flight.constructor); // 'function'

/*
If you would like to access an object property and want the value of the child not the parent's, you can use "hasOwnProperty"

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abstract class Forme {
	protected String couleur;

	public void  changerCouleur(String  nouveauCouleur){
		this.couleur = nouveauCouleur;
	}

	protected abstract void deplacer(float dx, float dy);
}

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/**
 * This function allows you to add a number of omniture tags and once they are all assigned non empty values,
 * they will be automatically submitted to the server
 * @returns {{addTag: addTag, updatedTag: updatedTag}}
 * @constructor
 */
var OmnitureTagger = function() {
    var tags = {};
    
    for (var i=0;i < arguments.length;i++) {

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//Loading files dynamically
function loadjscssfile(filename, filetype){
    if (filetype=="js"){ //if filename is a external JavaScript file
        var fileref=document.createElement('script')
        fileref.setAttribute("type","text/javascript")
        fileref.setAttribute("src", filename)
    }
    else if (filetype=="css"){ //if filename is an external CSS file
        var fileref=document.createElement("link")

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//to run geth client
geth --datadir=./chaindata/ --rpccorsdomain "*" --rpc --rpcport "8585" --rpcaddr 0.0.0.0 -rpcapi="db,eth,net,web3,personal,web3"

//start the interactive geth shell
geth attach /Users/adilmezghouti/development/ether-lab/chaindata/geth.ipc

//make the geth command available system wide
export PATH="/Users/adilmezghouti/development/geth-alltools-darwin-amd64-1.7.2-1db4ecdc:$PATH"

//Initilaize the local ethereum node

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pragma solidity ^0.4.0;

contract EIP20Interface {
    /* This is a slight change to the ERC20 base standard.
    function totalSupply() constant returns (uint256 supply);
    is replaced with:
    uint256 public totalSupply;
    This automatically creates a getter function for the totalSupply.
    This is moved to the base contract since public getter functions are not
    currently recognised as an implementation of the matching abstract

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/**
 * This function allows you to add a number of omniture tags and once they are all assigned non-empty values,
 * they will be automatically submitted to the server
 * @returns {{addTag: addTag, updatedTag: updatedTag}}
 * @constructor
 */
var OmnitureTagger = function() {
    var tags = {};
    
    for (var i=0;i < arguments.length;i++) {