Sarfaraz Hussain Sarfarazsajjad

Update 28 July 2019: An updated version of this guide for Ubuntu Server 18.04 LTS is now available. Feel free to check it out.

Update 23 May 2020: This guide is ALREADY OUTDATED and might no longer work with new versions of Ubuntu and VirtualBox. Please consider switching to the updated guide instead. I will no longer respond to the replies to this gist. Thank you.

Mounting VirtualBox shared folders on Ubuntu Server 16.04 LTS

This guide will walk you through steps on how to setup a VirtualBox shared folder inside your Ubuntu Server guest. Tested on Ubuntu Server 16.04.3 LTS (Xenial Xerus)

How to install Xdebug on MacOS 10.15 Catalina (Xcode 11) When you try to build xdebug on macOS Catalina you will get errors like these:

phpize grep: /usr/include/php/main/php.h: No such file or directory grep: /usr/include/php/Zend/zend_modules.h: No such file or directory grep: /usr/include/php/Zend/zend_extensions.h: No such file or directory Configuring for: PHP Api Version:

Installation:

sudo apt-get install apache2-utils

GET example

ab -n 10 -c 2 http://dummy.restapiexample.com/api/v1/employees

	#!/bin/sh
	sudo yum update -y
	sudo amazon-linux-extras install nginx1 php7.4 -y
	sudo yum clean metadata
	sudo yum install git mariadb-server php-{pear,cgi,common,curl,mbstring,gd,mysqlnd,gettext,bcmath,json,xml,fpm,intl,zip} -y
	# Back up existing config
	sudo cp -R /etc/nginx /etc/nginx-backup
	sudo chmod -R 777 /var/log
	sudo chown -R ec2-user:ec2-user /usr/share/nginx/html
	echo "<?php phpinfo(); ?>" > /usr/share/nginx/html/index.php

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8"/>
	<title>Form validation: Task 2</title>
	<style>
	body {
	background-color: #fff;
	color: #333;
	font: 1em / 1.4 Helvetica Neue, Helvetica, Arial, sans-serif;

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8"/>
	<title>Form validation: Task 1</title>
	<style>
	body {
	background-color: #fff;
	color: #333;
	font: 1em / 1.4 Helvetica Neue, Helvetica, Arial, sans-serif;

	var a = 1;
	let b = 2;
	var c = "hello";
	var d = "a";
	d = 5;
	d = 5.6;

	var f = 5 + a;
	console.log('f=',f);

	<!--
	Preprocessing (scaling down) images on client side before uploading

	Because people often upload 5MB big 3000x2000px PNGs that are then scaled down to 100x100px JPEGs on server - waste of time and bandwidth

	1. user selects image(s)
	2. script opens the image using FileReader API
	3. script appends it to new Image object (not displayed at all actually)
	4. new Image objects is drawn into new Canvas object, that is scaled down to desired dimensions
	5. display the canvas, ie. a preview of the image to be uploaded

	import PIL
	from PIL import Image
	import os
	import sys
	def readf():
	try:
	input_dir = str(sys.argv[1].rstrip('/')) #path to img source folder
	img_size = str(sys.argv[2]) #The image size (128, 256,etc)
	output_dir = str(sys.argv[3].rstrip('/')) #output directory
	print "starting...."

	# example folder structure
	# images
	# ---- Tigers
	# -------------1_tigers.jpg
	# -------------2_tigers.jpg
	# -------------2_tigers.png
	# -------------n_tigers.jpg
	# ---- Cats
	# -------------1_cats.jpg
	# -------------2_tcats.jpg