antoni

require 'hexapdf'

doc = HexaPDF::Document.open("/home/xxxx/Downloads/OoPdfFormExample.pdf")
page = doc.pages[0]
canvas = page.canvas(type: :overlay)


canvas.translate(0, 20) do
  canvas.fill_color(0.3, 0.7, 0.7)
  canvas.rectangle(50, 0, 80, 80, radius: 80)

antoni

# Stop all containers
docker stop `docker ps -qa`

# Remove all containers
docker rm `docker ps -qa`

# Remove all images
docker rmi -f `docker images -qa `

# Remove all volumes

antoni

function getScrollParent(node) {
  const isElement = node instanceof HTMLElement;
  const overflowY = isElement && window.getComputedStyle(node).overflowY;
  const isScrollable = overflowY !== 'visible' && overflowY !== 'hidden';

  if (!node) {
    return null;
  } else if (isScrollable && node.scrollHeight >= node.clientHeight) {
    return node;
  }

antoni

Setup proxy

export https_proxy="https://my-proxy.com:443"
export http_proxy="https://my-proxy.com:80"

sudo vim /etc/yum.conf

add proxy on first line proxy=https://my-proxy.com:80

[main]

antoni

Probably one of the easiest things you'll ever do with gpg

Install Keybase: https://keybase.io/download and Ensure the keybase cli is in your PATH

First get the public key

keybase pgp export | gpg --import

Next get the private key

antoni

#!/bin/bash

# Might as well ask for password up-front, right?
sudo -v

# Keep-alive: update existing sudo time stamp if set, otherwise do nothing.
while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &

# Example: do stuff over the next 30+ mins that requires sudo here or there.
function wait() {

antoni

Sessions

New Session

• tmux new [-s name] [cmd] (:new) - new session

Switch Session

• tmux ls (:ls) - list sessions
• tmux switch [-t name] (:switch) - switches to an existing session

antoni

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"strconv"
)

func main() {

antoni

How to make a Release Android App debuggable

Let's say you want to access the application shared preferences in /data/data/com.mypackage.
You could try to run adb shell and then run-as com.mypackage ( or adb shell run-as com.mypackge ls /data/data/com.mypackage/shared_prefs), but on a production release app downloaded from an app store you're most likely to see:

run-as: Package 'com.mypackage' is not debuggable

antoni

#!/bin/sh


# this script does absolutely ZERO error checking.   however, it worked
# for me on a RHEL 6.3 machine on 2012-08-08.  clearly, the version numbers
# and/or URLs should be made variables.  cheers,  [email protected]


mkdir mosh
cd mosh