David A. K. Ad. Dakad

Markdown and reStructuredText

GitHub supports several lightweight markup languages for documentation; the most popular ones (generally, not just at GitHub) are Markdown and reStructuredText. Markdown is sometimes considered easier to use, and is often preferred when the purpose is simply to generate HTML. On the other hand, reStructuredText is more extensible and powerful, with native support (not just embedded HTML) for tables, as well as things like automatic generation of tables of contents.

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

Setup a Local Only SMTP Email Server (Linux, Unix, Mac)

1 - Point localhost.com to your machine

Most of programs will not accept an email using just @localhost as domain. So, edit /etc/hosts file to make the domain localhost.com point to your machine, including this content to the file:

127.0.0.1 localhost.com

	require 'minitest/spec'

	module MiniTest
	module Rails
	class Spec < MiniTest::Spec
	alias :method_name :__name__
	alias :pending :skip
	class << self
	def xit(desc='anonymous')
	it(name) { skip 'DISABLED' }

	import redis
	import threading

	class Listener(threading.Thread):
	def __init__(self, r, channels):
	threading.Thread.__init__(self)
	self.redis = r
	self.pubsub = self.redis.pubsub()
	self.pubsub.subscribe(channels)

	<?php
	function utf8_encode_deep(&$input) {
	if (is_string($input)) {
	$input = utf8_encode($input);
	} else if (is_array($input)) {
	foreach ($input as &$value) {
	utf8_encode_deep($value);
	}

	unset($value);

	#!/usr/bin/env bash

	# This script prints out all of your Redis keys and their size in a human readable format
	# Copyright 2013 Brent O'Connor
	# License: http://www.apache.org/licenses/LICENSE-2.0

	human_size() {
	awk -v sum="$1" ' BEGIN {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; } '
	}

	Lesson 1 SUMMARY


	1. The cursor is moved using either the arrow keys or the hjkl keys.
	h (left) j (down) k (up) l (right)

	2. To start Vim from the shell prompt type: vim FILENAME <ENTER>

	3. To exit Vim type: <ESC> :q! <ENTER> to trash all changes.
	OR type: <ESC> :wq <ENTER> to save the changes.

	Moved to README within Vim Environment repo

	http://github.com/actaneon/VimEnv/blob/master/README

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Building a router</title>
	<script>
	// Put John's template engine code here...

	(function () {
	// A hash to store our routes:

David A. K. Ad. Dakad

Markdown and reStructuredText

Latency numbers every programmer should know

Setup a Local Only SMTP Email Server (Linux, Unix, Mac)

1 - Point localhost.com to your machine

2 - Install Postfix