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Connmanctl Cheat Sheet

• Documentation @ http://git.kernel.org/cgit/network/connman/connman.git/tree/doc

Configure WiFi

• Scan for access points (run multiple times for more complete scan):

    # connmanctl scan wifi
  

Scan completed for wifi

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Using IFTTT to handle future and recurring tasks

• Store the tasks in our "GFR Tasks" Google calendar.

  • Relatively fine grained control over dates of tasks (e.g. second Wednesday of each month)

• IFTTT applet turns these events into cards in Trello

  • Our applets
  • "If any event starts on GFR Tasks, then create a card in - Go Free Range board"
  • Fires 15 minutes before the start date of a task, i.e. 23:45 for all day tasks

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Virtualenv's bin/activate is Doing It Wrong

I'm a Python programmer and frequently work with the excellent [virtualenv][] tool by Ian Bicking.

Virtualenv is a great tool on the whole but there is one glaring problem: the activate script that virtualenv provides as a convenience to enable its functionality requires you to source it with your shell to invoke it. The activate script sets some environment variables in your current environment and defines for you a deactivate shell function which will (attempt to) help you to undo those changes later.

This pattern is abhorrently wrong and un-unix-y. activate should instead do what ssh-agent does, and launch a sub-shell or sub-command with a modified environment.

Problems

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#!/usr/bin/env bash

# Generate a pseudo UUID
uuid()
{
	local N B C='89ab'

	for (( N=0; N < 16; ++N ))
	do
		B=$(( $RANDOM%256 ))

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AZHU.storage = {
	save : function(key, jsonData, expirationMin){
		if (!Modernizr.localstorage){return false;}
		var expirationMS = expirationMin * 60 * 1000;
		var record = {value: JSON.stringify(jsonData), timestamp: new Date().getTime() + expirationMS}
		localStorage.setItem(key, JSON.stringify(record));
		return jsonData;
	},
	load : function(key){
		if (!Modernizr.localstorage){return false;}

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#!/usr/bin/bash

word="$(xsel -o)"

result=$(youdao "$word")

notify-send --icon=info "$word" "$result"

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#!/usr/bin/env python
# encoding: utf-8

import sys
from argparse import ArgumentParser
from xml.dom import minidom
try:
	from urllib.request import urlopen
	from urllib.parse import urlencode
except ImportError:

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How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

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self.addEventListener('push', function(event) {
  event.waitUntil(
    self.registration.showNotification(
      'Hello', {
        body: 'Thanks for sending this push msg.',
        icon: './images/icon-192x192.png',
        badge: './images/icon-72x72.png'
      })
  );
});

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codegolf JS

Mini projects by Maxime Euzière (xem), subzey, Martin Kleppe (aemkei), Mathieu Henri (p01), Litterallylara, Tommy Hodgins (innovati), Veu(beke), Anders Kaare, Keith Clark, Addy Osmani, bburky, rlauck, cmoreau, maettig, thiemowmde, ilesinge, adlq, solinca, ...

(For more info and other projects, visit http://xem.github.io and https://github.com/xem / https://github.com/codegolf)

---

https://github.com/xem/miniConwaySerpinski (188b Game of Life tweak to produce a Serpinski triangle)