toddlers

#!/usr/bin/env ruby

# A simply utility to show character counts for each line of input and
# highlight lines longer than 80 characters.
#
# Written as an example for http://jstorimer.com/2011/12/12/writing-ruby-scripts-that-respect-pipelines.html
#
# Examples:
#
# $ hilong Gemfile

toddlers

Follow these steps to install Graphite on a fresh Ubuntu 12.04 instance. Make sure you read and understand the commands because by the time you read this, things could be outdated.

Graphite

Installing dependencies

# apt-get install libpq-dev
# apt-get install python-dev python-pip python-cairo python-psycopg2
# apt-get install python-django python-django-tagging

toddlers

Backend Architectures

ARCHITECTURES

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

toddlers

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

toddlers

An example implementation of the self-pipe trick in Ruby, by Paul Annesley (found here: http://pastebin.com/1SZprwZm)

Further reading:

• D.J. Berstein - The self-pipe trick - http://cr.yp.to/docs/selfpipe.html
• Alex Pennace - Safe UNIX Signal Handling Tips - http://osiris.978.org/~alex/safesignalhandling.html
• Ryan Tomayko - I like Unicorn because it's Unix - http://tomayko.com/writings/unicorn-is-unix
• Unicorn Sourcecode - http://bogomips.org/unicorn.git/tree/lib/unicorn/http_server.rb
• man 2 select

toddlers

The following is an explanation of Ruby blocks and yield by another Bloc mentor who was trying to explain it to one of his students.

On my very first day programming, if someone asked me for "the sum of the numbers from 1 to 10", I'd have written:

puts 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

Easy enough.

toddlers

Web Performance Power Tool: HTTP Archive (HAR) - blog post with video and details about the projects we covered.

The HAR Show GDL episode on YouTube

---

• HAR Spec: http://www.softwareishard.com/blog/har-12-spec/

• HTTP Archive (powered by HAR files): www.httparchive.org

• HAR Viewer: http://code.google.com/p/harviewer/

toddlers

# Convert any YouTube video into an audio file you can listen to on the go, using:
#   http://rg3.github.com/youtube-dl/

{ ~ } > brew install ffmpeg

{ ~ } > wget https://raw.github.com/rg3/youtube-dl/2012.02.27/youtube-dl
{ ~ } > chmod u+x youtube-dl

# Pick which video format you want to download.. (use any YT video link)
{ ~ } > ./youtube-dl -s -F http://www.youtube.com/watch?v=vT1KmTQ-1Os

toddlers

#!/usr/bin/env bash
# call like this on the target server:
# NODENAME='foo' CHEF_ENV='production' RUNLIST='["role[foo]","recipe[bar]"]' CHEFREPO='git@example.com:repo.git' bash <( curl -L https://raw.github.com/gist/1026628 )
# You will need to ensure that the ssh key is already set up on the server.

set -e

export CHEF_DIR="${HOME}/chef"
sudo rm -rf $CHEF_DIR
mkdir -p "$CHEF_DIR"

toddlers

#!/bin/sh

## you'll have to do a couple extra steps to get this running
## there are probably other ways to handle svncanboot, but this is from the linux forum

set -e

if
   touch /etc/_testr_file
then