Germán Martín gmag11

Browser histories

Unless you are using Safari on OSX, most browsers will have some kind of free plugin that you can use to export the browser's history. So that's probably the easiest way. The harder way, which seems to be what Safari wants is a bit more hacky but it will also work for other browsers. Turns out that most of them, including Safari, have their history saved in some kind of sqlite database file somewhere in your home directory.

The OSX Finder cheats a little bit and doesn't show us all the files that actually exist on our drive. It tries to protect us from ourselves by hiding some system and application-specific files. You can work around this by either using the terminal (my preferred method) or by using the Cmd+Shft+G in Finder.

Once you locate the file containing the browser's history, copy it to make a backup just in case we screw up.

Raspberry Pi VPN Router

This is a quick-and-dirty guide to setting up a Raspberry Pi as a "router on a stick" to PrivateInternetAccess VPN.

Requirements

Install Raspbian Jessie (2016-05-27-raspbian-jessie.img) to your Pi's sdcard.

Use the Raspberry Pi Configuration tool or sudo raspi-config to:

With the release of Vivaldi 2.2, this page is now obsolete and unmaintained. Widevine is fetched automatically on post install of our official packages. The information below and the script are left for historical reasons but will not be updated.

If you are using something newer than Vivaldi 2.2, you should not be using this script as there is simply no need. Any need you think you have for it would be a bug IMHO and thus should be logged in a bug report. Before you do so however, you should also checkout the Vivaldi help page on Widevine, on Linux

Summary

A bunch of people asked how they could use this script with pure Chromium on Ubuntu. The following is a quick guide. Though I still suggest you at least try Vivaldi. Who knows, you might like it. Worried about proprietary componants? Remember that libwidevinecdm.so is a b

Guide to PROGMEM on ESP8266 and Arduino IDE

Intro

On low memory devices like the arduino and esp8266 you do not want strings to be stored in RAM. This occurs by default on these systems. Declare a string const char * xyz = "this is a string" and it will use up RAM.

The solution on these devices is to allow strings to be stored in read only memory, in Arduino this is the PROGMEM macro. Most of my experience is with the ESP8266 which is a 32bit micros controller. This device stores PROGMEM data in flash. The macro PROGMEM on ESP8266 is simply

#define PROGMEM   ICACHE_RODATA_ATTR

Useful commands to use in Shell or others:

This is a simple guide for non-pro bash users to do random but annoying tasks in just seconds

Your boss will be happy and you'll be less stressed ;)

	/*Códigos correspondientes al trabajo realizado para el ISUM 2012.
	* Test de rendimiento de los algoritmos de ordenamiento Quicksort,
	* Mezcla y burbuja implementados en C++, Fortran y Python.
	* Guanajuato, Guanajuato, México (14-16 de Marzo 2012)
	*
	* Programa: quicksort.cpp
	* compilar: gcc -Wall -O quicksort.cpp -o quicksort
	* Uso: $./quicksort 1000.dat
	* El tamaño del array se toma del nombre del archivo (1000.dat)
	* Salida:

	# This script work on any system using systemd as the init process.
	# It works on Debian/Raspbian Jessie.
	# If you have Debian/Rapbian Wheezy and want to use this script with systemd
	# follow the information here : https://wiki.debian.org/systemd

	# To easily download, install and set at startup:
	# wget -O /tmp/download https://gist.github.com/Belphemur/3f6d3bf211b0e8a18d93/download && sudo tar -zxf /tmp/download --strip-components 1 -C /etc/systemd/system/ && sudo systemctl --reload-daemon && sudo systemctl enable Node-RED

	# To consult the log : journalctl -u Node-RED
	[Unit]

	"""
	Change the constants below.
	"""
	fileName = "INSERT FILENAME"
	API = "INSERT API-WRITE-KEY"
	nodeID = 13

	urlString = "http://emoncms.org/input/bulk.json?time=%d&apikey=%s&data=["

	import pandas as pd

	#!/bin/bash

	#############
	# n8henrie's Raspberry Pi CrashPlan installer script
	# v0.1.0 :: 20160530
	#############

	set -e

	CP_VERSION="4.8.0"

	#include <ESP8266WiFi.h>

	void setup() {
	Serial.begin(115200);
	delay(1000);
	Serial.printf("\nTry connecting to WiFi with SSID '%s'\n", WiFi.SSID().c_str());

	WiFi.mode(WIFI_STA);
	WiFi.begin(WiFi.SSID().c_str(),WiFi.psk().c_str()); // reading data from EPROM, last saved credentials
	while (WiFi.status() == WL_DISCONNECTED) {