ololobus

Apache Spark installation + ipython/jupyter notebook integration guide for macOS

Tested with Apache Spark 2.1.0, Python 2.7.13 and Java 1.8.0_112

For older versions of Spark and ipython, please, see also previous version of text.

Install Java Development Kit

mjswensen

set-window-option -g status-left " #S "
set-window-option -g status-left-fg black
set-window-option -g status-left-bg white

set-window-option -g status-right " %H:%M %d-%b-%y "
set-window-option -g status-right-fg black
set-window-option -g status-right-bg white

set-window-option -g window-status-format " #I: #W "

mitsuhiko

#!/usr/bin/env python
# Quick and dirty demonstration of CVE-2014-0160 by
# Jared Stafford ([email protected])
# Modified so that it finds cookies

import sys
import struct
import socket
import time
import select

holms

git clone git://git.fedorahosted.org/virt-manager.git
cd virt-manager
sudo port -v install intltool py27-pygtk
sudo python setup.py install

tylerneylon

-- Two dashes start a one-line comment.

--[[
     Adding two ['s and ]'s makes it a
     multi-line comment.
--]]

----------------------------------------------------
-- 1. Variables and flow control.
----------------------------------------------------

burke

A Bloom Filter in Redis

This is a really simple implementation of a bloom filter using Redis 2.6's lua scripting facility.

Though it "works", it's just a proof of concept. The choice and implementation of hashing functions leave something to be desired (I'm sure it's a fine implementation of CRC32 that I borrowed, but it's in pure lua, and, well, CRC32 is not the best function to use for a bloom filter).

Caveat Emptor, no refunds, etc. MIT License.

jonifreeman

object Sql {
  import scala.reflect.makro._
  import language.experimental.macros

  case class Query[R](/*sql: String*/)

  def execute[R](q: Query[R]): Seq[R] = sys.error("implement me")

  def sqlImpl(c: Context)(s: c.Expr[String]): c.Expr[Any] = {
    import c.universe._

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

baopham

mikeyk

#! /usr/bin/env python

import redis
import random
import pylibmc
import sys

r = redis.Redis(host = 'localhost', port = 6389)
mc = pylibmc.Client(['localhost:11222'])