mahmoudimus

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

mahmoudimus

Format Changes to Test Kitchen's kitchen.yml File

This is happening thanks to a refactoring of the data manipulation code formerly in Kitchen::Config.

There are now 3 main configuration blocks that can be placed in the various levels:

• driver: Configurtation relavent to Kitchen drivers. This is a combination of what was driver_plugin and driver_config. Backwards compatability is guarenteed with the legacy formats for a time, then will be deprecated (with a warning when encountered), then will be removed in a future release.
• provisioner: Configuration relating to the automation tool being used. Currently supporting "chef_solo" and "chef_zero". Previously several Chef-related config paths were dumped in a Suite block, namely data_path, data_bags_path, environments_path, nodes_path, roles_path, etc. These will be supported for backwards compatability, then will be deprecated (with a warning when encountered), then will be removed in a future release.
• busser: Configuration rela

mahmoudimus

Hello world python subcommand pattern

Using pyCLI vs commando to create some commands and subcommands.

https://gist.github.com/1202975.git

git clone git@gist.github.com:1202975.git python-hello-subcommand

How to write a well behaved console application? The ones with the best UIs allow configuration of core commands in a

mahmoudimus

if not sinatra.incoming ( ngx.req.get_method() , ngx.var.uri ) then
	return ngx.exit ( 404 )
end

mahmoudimus

from blueprint import example
from extensions import mail
from flask import Flask
import settings


def create_app(settings=settings):
    ret_val = Flask(__name__)
    ret_val.config.from_object(settings)
    # initialize extensions...

mahmoudimus

#!/usr/bin/env python
# Using BaseHTTPServer for mocking servers

from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
from threading import Thread
from time import sleep, time
from urllib import urlopen
import httplib

mahmoudimus

Google Speech To Text API

Base URL: https://www.google.com/speech-api/v1/recognize
It accepts POST requests with voice file encoded in FLAC format, and query parameters for control.

Query Parameters

client
The client's name you're connecting from. For spoofing purposes, let's use chromium

lang
Speech language, for example, ar-QA for Qatari Arabic, or en-US for U.S. English

mahmoudimus

{
   "Statement":[
      {
         "Action":[
            "route53:ChangeResourceRecordSets",
            "route53:GetHostedZone",
            "route53:ListResourceRecordSets"
         ],
         "Effect":"Allow",
         "Resource":[

mahmoudimus

#!/bin/bash
#
# this script will attempt to detect any ephemeral drives on an EC2 node and create a RAID-0 stripe
# mounted at /mnt. It should be run early on the first boot of the system.
#
# Beware, This script is NOT fully idempotent.
#

METADATA_URL_BASE="http://169.254.169.254/2012-01-12"

mahmoudimus

#!/bin/bash -e
####
# based on https://gist.github.com/jeffery/1115504
# Helper script to update the Last modified timestamp of files in a Git SCM
# Projects working Copy
#
# When you clone a Git repository, it sets the timestamp of all the files to the
# time when you cloned the repository.
#
# This becomes a problem when you want the cloned repository, which is part of a