DannyBen

require 'socket'

title   "UDP Test"

action :server do
  s = UDPSocket.new
  s.bind(nil, 1234)
  5.times do
    text, sender = s.recvfrom(16)
    puts "received #{text} from #{sender}"

DannyBen

# Usage:
# $ rackup -p3000
# $ curl localhost:3000

require 'rack'
require 'yaml'

run proc { |env| [200, {'Content-Type' => 'text/html'}, [env.select { |key| key.include?('HTTP_') }.to_yaml ] ] }

DannyBen

Ruby Benchmark Helper

Usage

require './bm'

bm = BM.new

bm.add(:sleep_long) { sleep 0.1 }

DannyBen

#!/usr/bin/env bash

##############################################################################
# ----------------------------------------------------------------------
# ASN/IPv4/Prefix lookup tool. Uses Team Cymru's whois service for data.
# ----------------------------------------------------------------------
# example usage:
#  asn <ASnumber>      -- to lookup matching ASN data. Supports "as123" and
#                         "123" formats (case insensitive)
#  asn <IP.AD.DR.ESS>  -- to lookup matching route and ASN data

DannyBen

# Stub commands printing it's name and arguments to STDOUT or STDERR.
stub() {
  local cmd="$1"
  if [ "$2" == "STDERR" ]; then local redirect=" 1>&2"; fi

  if [[ "$(type "$cmd" | head -1)" == *"is a function" ]]; then
    local source="$(type "$cmd" | tail -n +2)"
    source="${source/$cmd/original_${cmd}}"
    eval "$source"
  fi

DannyBen

# Interactive approval testing for Bash.
# Author: Danny Ben Shitrit (https://github.com/dannyben)
#
# This utility will compare the output of a command with an expected output
# stored in the approvals folder.
# 
# - When the approval file does not exist, the actual output will be shown to
#   you, and you will be prompted to approve (and save) it.
# - When the approval file exists, but contains different data, the diff will
#   be shown to you, and you will be prompted to approve (and save) it.

DannyBen

#!/usr/bin/env ruby
# Show cron expression in plain english
# Place in /usr/local/bin and chmod +x

require 'bundler/inline'

gemfile do
  source "https://rubygems.org"
  gem 'cron2english'
end

DannyBen

# frozen_string_literal: true

source "https://rubygems.org"

git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }

gem "tty-prompt", github: 'piotrmurach/tty-prompt'
gem "rspec"

DannyBen

pragma solidity ^0.4.11;


/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control
 * functions, this simplifies the implementation of "user permissions".
 */
contract Ownable {
  address public owner;

DannyBen

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