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find . -type f -mtime -4h -d 1

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#!/usr/bin/env ruby

@slave_status = Hash[%x(mysql -uroot -e 'SHOW SLAVE STATUS \\\G').split(/\s*\n\s*/).map { |e| spl = e.split(/\:\s*/); spl.size == 2 ? [spl.first, spl.last] : nil }.compact]

def slave_healthy?
  @slave_status['Slave_IO_Running'] == 'Yes' &&
  @slave_status['Slave_SQL_Running'] == 'Yes' &&
  @slave_status['Seconds_Behind_Master'] != 'NULL' &&
  @slave_status['Seconds_Behind_Master'].to_i < 1800
end

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#!/usr/bin/env ruby
#
# How to make Ruby httpclient throw Encoding::CompatibilityError with Image/IO object on EY Server.
# Use case is update a Facebook object with a parameter containing UTF-8 escaped strings and a file upload.

# Execute with 'bundle exec <script>' on a Gemfile containing httpclient or use system gem

# The problem lies in Encoding and the request.dump method used by FbGraph debug. 
# On Engine Yard servers the POSTing with httpclient with multipart Content-Types ( a file upload + the UTF-8 body content) causes
# issue when reading the image from disk. If the image is a string, no problem. 

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#!/usr/bin/env ruby
#
# How to make Ruby httpclient throw Encoding::CompatibilityError with Image/IO object.
# Use case is update a Facebook object with a parameter containing UTF-8 escaped strings and a file upload.
# This has been duplicated on OSX 10.7 and Engine Yard, Gentoo.

# Execute with 'bundle exec <script>' on a Gemfile containing httpclient or use system gem

# The problem lies in Encoding and the request.dump method used by FbGraph debug. 
# On Engine Yard servers the POSTing with httpclient with multipart Content-Types ( a file upload + the UTF-8 body content) causes

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require 'fog'
# Fetch and save backup on TARGET
storage = Fog::Storage.new({:provider => 'AWS', :aws_access_key_id => ENV['AWS_KEY'], :aws_secret_access_key => ENV['AWS_SECRET']})

dir = storage.directories.get('<YOUR DIR>')
file = dir.files.get "<S3 PATH TO FILE>"
output = File.new "<LOCAL FILE PATH>", "w"
output.write file.body
output.close

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Sidekiq.redis {|conn| conn.smembers('workers').map{|w| msg = conn.get("worker:#{w}"); msg ? [w, Sidekiq.load_json(msg)] : nil; }.compact.map{|w| w[1]["queue"]}}

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Sidekiq.redis {|conn| conn.smembers('workers').map{|w| msg = conn.get("worker:#{w}"); msg ? [w, Sidekiq.load_json(msg)] : nil; }.compact}

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1. Convert PEM into pub SSH key file:
ssh-keygen -e -f amazon-ec2-key.pem >> amazon-ec2-key.pem.pub

2. Generate a PEM from a SSH key: 
openssl rsa -in my_tunneler -outform pem > my_tunneler.pem

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#!/bin/bash
# from http://ubuntuserverguide.com/2012/06/how-to-installing-nginx-with-php5-and-mysql-support-on-ubuntu-server-12-04-lts.html

PHP_SCRIPT=/usr/sbin/php-fastcgi
FASTCGI_USER=www-data
FASTCGI_GROUP=www-data
PID_DIR=/var/run/php-fastcgi
PID_FILE=/var/run/php-fastcgi/php-fastcgi.pid
RET_VAL=0
case "$1" in

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ls | egrep -e '^[a-z0-9]{8}-.*' | xargs du | awk '{ SUM += $1} END {print SUM/1024/1024}'