rajivmehtaflex

#!/bin/sh

# does the swap file exist?
grep -q "swapfile" /etc/fstab

# if it does then remove it
if [ $? -eq 0 ]; then
	echo 'swapfile found. Removing swapfile.'
	sed -i '/swapfile/d' /etc/fstab
	echo "3" > /proc/sys/vm/drop_caches

rajivmehtaflex

#!/bin/sh

# size of swapfile in megabytes
swapsize=512

# does the swap file already exist?
grep -q "swapfile" /etc/fstab

# if not then create it
if [ $? -ne 0 ]; then

rajivmehtaflex

# install es server
!apt install default-jdk > /dev/null
!wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.5.4.tar.gz -q --show-progress
!tar -xzf elasticsearch-6.5.4.tar.gz
!chown -R daemon:daemon elasticsearch-6.5.4
# start server
import os
from subprocess import Popen, PIPE, STDOUT
es_server = Popen(['elasticsearch-6.5.4/bin/elasticsearch'], 
                  stdout=PIPE, stderr=STDOUT,

rajivmehtaflex

Pipenv Cheat Sheet

Install pipenv

pip3 install pipenv

Activate

pipenv shell

rajivmehtaflex

const fs 		= require('fs');
const jwt 		= require('jsonwebtoken');
// http://travistidwell.com/blog/2013/09/06/an-online-rsa-public-and-private-key-generator/
// use 'utf8' to get string instead of byte array  (1024 bit key)
var privateKEY 	= fs.readFileSync('./private.key', 'utf8'); // to sign JWT
var publicKEY 	= fs.readFileSync('./public.key', 'utf8'); 	// to verify JWT

module.exports = {
	sign: (payload, $Options) => {
		/*

rajivmehtaflex

GENERATORS:

• Text Content Generator - http://www.lipsum.com
• Favicon Generator - http://tools.dynamicdrive.com/favicon
• Data Generator - https://mockaroo.com/
• Mobile Mockup Generator - https://mockuphone.com
• Logo Generator - https://www.logaster.com
• UUID Generator - https://www.uuidgenerator.net/
• Hash Generator - https://passwordsgenerator.net/sha256-hash-generator/

IMAGE RESOURCES:

rajivmehtaflex

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

For more about AWS and AWS Certifications and updates to this Gist you should follow me @leonardofed

---

rajivmehtaflex

function waitForElement(selector) {
  return new Promise(function(resolve, reject) {
    var element = document.querySelector(selector);

    if(element) {
      resolve(element);
      return;
    }

    var observer = new MutationObserver(function(mutations) {

rajivmehtaflex

import cv2
import time
import math
import numpy as np

capture = cv2.VideoCapture(0)
print capture.get(cv2.CAP_PROP_FPS)

t = 100
w = 640.0