William Sampaio WilliamSampaio

Full Stack Developer.

WilliamSampaio / calcula_tempo_medio_em_segundos.sh

Created November 5, 2025 01:35

Filtra o tempo de duração dos logs gerados pelo Apache Hop e calcula a média em segundos.

	#!/usr/bin/env bash

	for file in ~/integracao_*.log; do tail -n 1 $file \| awk '{print $9}'; done \| awk '{ sum += $1 } END { if (NR > 0) print sum / NR }'

WilliamSampaio / index.html

Created July 30, 2025 12:04

Websocket SSH Go

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<script src="https://unpkg.com/xterm/lib/xterm.js"></script>
	<link rel="stylesheet" href="https://unpkg.com/xterm/css/xterm.css" />
	<style>
	body, html { margin: 0; height: 100%; background: black; }
	#terminal { width: 100%; height: 100vh; }
	</style>

WilliamSampaio / concorrencia.go

Created July 16, 2025 19:29

WilliamSampaio / ssh_remote_terminal.go

Created July 16, 2025 17:10

Example of how to access the terminal via SSH with Go

WilliamSampaio / convert.sql

Created February 27, 2025 19:48

Convert latin1 to UTF8 (MySQL)

	SELECT
	convert(cast(convert(t.field using latin1) as binary) using utf8)
	FROM table t;

WilliamSampaio / xpath_with_javascript.html

Created August 25, 2024 03:19

An example of DOM manipulation with XPath and pure javascript.

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	<style>
	.male {
	background-color: lightblue;

WilliamSampaio / canvas_fullscreen_responsive.html

Created July 2, 2024 18:56

Canvas Fullscreen Responsive

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Canvas Fullscreen Responsive</title>
	<style>
	body {
	margin: 0 !important;

WilliamSampaio / index.html

Created January 22, 2024 15:13

disable-f5-browser-refresh-js

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Disable F5</title>
	<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
	integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
	</head>

WilliamSampaio / take_a_screenshot.py

Created December 4, 2023 00:23

Scripts to take a screenshot

	# pip install pillow pyautogui

	import pyautogui
	from PIL import ImageGrab


	def take_a_screenshot(filename):
	try:
	size = pyautogui.size()
	ss_region = (0, 0, size[0], size[1])

WilliamSampaio / take_a_picture.py

Last active December 4, 2023 00:23

Scripts to take a pictures from webcam