RodrigoDornelles

import sys, itertools

try:
    file1, file2 = open(sys.argv[1], 'r').readlines(), open(sys.argv[2], 'r').readlines()
    [sys.stdout.write(l1.replace('\n', '') + l2.replace('\n', '')) for (l1,l2) in itertools.zip_longest(file1, file2, fillvalue='')]

except:
    sys.stderr.write('[!] Error: require two valid files!')

RodrigoDornelles

mysqldump -u <username> -p<password> -T . <database>  --fields-terminated-by '\t' --fields-escaped-by '\' 

RodrigoDornelles

UPDATE page SET slug = regexp_replace(title, '[^a-z]+', '-', 'g');

RodrigoDornelles

function bubble_sort(dict $array): string {
    $start = microtime(true);
	do
	{
		$sw = false;
		for($i = 0, $size = count($array) - 1; $i < $size; $i++)
		{
			if( $array[$i] > $array[$i + 1] )
			{
				$aux = $array[$i + 1];

RodrigoDornelles

Computational Measures

• Bit smallest computational unit, only use two values. (ex: 0 or 1)
• Byte composed of 8 bits, enough to show a simple and unique character. ASCII

Kb, Mb, Gb, Tb

1 Kilobit	1000 bits
1 Megabit	1000 Kilobits
1 Gigabit	1000 Megabits

RodrigoDornelles

#!/usr/bin/env bash
if [ `whoami` != 'root' ]
then
        echo "[!] Error: requires root!";
        exit;
fi

echo " * Clearing ram PageCache";
sync;
echo 1 > /proc/sys/vm/drop_caches;

RodrigoDornelles

#include <stdio.h>

const char* tni();
const char* tnf();

#define typename(T) ((_Generic((T), int: tni, float: tnf))())

int main()
{
  int foo;

RodrigoDornelles

wget \
     --recursive \
     --no-clobber \
     --page-requisites \
     --html-extension \
     --convert-links \
     --restrict-file-names=windows \
     --domains example.com \
     --no-parent \
         example.com/site/home

RodrigoDornelles

du -bsh * > big_folders.txt &

RodrigoDornelles

document.addEventListener("DOMContentLoaded", () => {
  const elements = document.querySelectorAll('.animate-number');
  const lerp = (start, end, amt) => Math.round((1-amt)*start+amt*end);
  const interval = 10;
  const amount = 0.03;

  const increment = (el) => {
    el.setAttribute('data-now', lerp(el.getAttribute('data-now'), el.getAttribute('data-end'), amount));
    el.innerText = Number(el.getAttribute('data-now')).toLocaleString();