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//Detecting which module is causing a global leak can be cumbersome and boring. But there is a nice little trick to find the little bastard. Add these lines at the very beginning of your tests:

Object.defineProperty(global, "name_of_leaking_property", {
    set : function(value) {
        throw new Error("Found the leak!");
    }
})
// This will print a stacktrace that shows which module caused the leak.
// https://github.com/mochajs/mocha/wiki/Detecting-global-leaks

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https://github.com/mitchellh/vagrant/issues/1755

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var browserify = require('browserify');
var async = require('async');
var heapdump = require('heapdump');
var memwatch = require('memwatch');
// memwatch.on('stats', function(stats) { console.log( stats.usage_trend ) });
// memwatch.on('leak', function(info) { console.log( info ) });

var paths = [ 
	'./views/demo1/demo1.js',
	'./views/demo2/demo2.js'

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# get data from file m.map
# this file has the map sourceName, destName
#i.e:
#/source/A.jpg,/dest/B.jpg
# split with awk and create an array, the use the array to scp

for i in $(cat m.map); do A=($(echo ${i}|awk -F"," '{print $1" "$2}'));scp ${A[0]} 1.1.1.1:${A[1]};done

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from https://www.howtoforge.com/postgresql-ssl-certificates

This describes how to set up ssl certificates to enable encrypted connections from PgAdmin on some client machine to postgresql on a server machine. The assumption is that postgresql (compiled with ssl support) and openssl are already installed and functional on the server (Linux). PgAdmin is already installed on the client (either Windows or Linux).

 
On the server, three certificates are required in the data directory. CentOS default is /var/lib/pgsql/data/: 
root.crt (trusted root certificate) 
server.crt (server certificate) 
server.key (private key)
Issue commands as root.

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// This script will boot app.js with the number of workers
// specified in WORKER_COUNT.
//
// The master will respond to SIGHUP, which will trigger
// restarting all the workers and reloading the app.

var cluster = require('cluster');
var workerCount = process.env.WORKER_COUNT || 2;

// Defines what each worker needs to run

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sed ':a;N;$!ba;s/\n/\\n/g' my_key.pem

or in vi

:%s/\n/\\n/

https://tickets.opscode.com/browse/CHEF-3540

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git rm $(git ls-files --deleted)
This will ONLY remove the deleted files from the git.

It could be also be used for adding ONLY modified files also.

git add $(git ls-files --modified)

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#
# based on: http://knowledgevoid.com/blog/2012/01/13/logging-the-correct-ip-address-using-apache-2-2-x-and-amazons-elastic-load-balancer/

# mod_evasive based on
# https://www.linode.com/docs/websites/apache-tips-and-tricks/modevasive-on-apache

# update cloudflare download link

# make sure you're root
sudo -i

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    // base
    var Padre = function(){
      // atributos de la clase padre
      this.yo = "soy el padre",
      this.nacionalidad =  "Argentino",
      // metodos de la clase padre
      this.saludar = function(){ alert(this.yo) },
      this.donde = function(){ alert("soy "+ this.nacionalidad)}
    }