aereal

module Kernel
  def installed?(cmd)
    FileTest.executable?(`which #{cmd}`.strip)
  end
end

aereal

#!/usr/bin/env ruby

$: << File.expand_path('~/src/net-irc/lib')

require 'net/irc'

class Bot < Net::IRC::Client
  include Net::IRC::Constants

  def on_rpl_welcome(m)

aereal

#!/usr/bin/env ruby

# !!!!! OAuth !!!!!

require "rubygems"
require "logger"
require "net/http"
require "json"

class Remtter

aereal

#! /usr/bin/ruby -Ku

require 'net/http'

require 'rubygems'
require 'nokogiri'
require 'meow'

TOPURL = 'http://baseball.yahoo.co.jp/npb/schedule/'

aereal

class IndexHoldedList < ::Hash
  def [](n)
    raise ArgumentError unless Integer === n
    self.fetch(n)
  end

  def []=(n, value)
    raise ArgumentError unless Integer === n
    self.store(n, value)
  end

aereal

class MyVector(val x: Double, val y: Double) {
	override def toString: String = {
		"MyVector(" + x + ", " + y + ")"
	}

	def length: Double = {
		Math.sqrt(x * x + y * y)
	}

	def direction: Double = {

aereal

#!/usr/bin/env ruby

tracks = [] << %w(鮮やか な 殺人) << %w(テレキャスター の 真実) <<
%w(Sadistic Summer) << %w(ターボチャージャー ON) << %w(Acoustic) <<
%w(O F T) << %w(CRAZY 感情 STYLE) << %w(トルネード G) << %w(傍観) <<
%w(TK in the 夕景) << %w(想像 の Security) << %w(感覚 UFO) <<
%w(秋 の 気配 の アルペジオ) << %w(ラスト ダンス レボリューション) <<
%w(Sergio Echigo) << %w(nakano kill you) << %w(COOL J) << %w(DISCO FLIGHT) <<
%w(knife vacation) << %w(am 3:45) << %w(赤い 誘惑) << %w(1/f の 誘惑) <<
%w(i not crazy am you are) << %w(夕景 の 記憶) << %w(Telecastic fake show) <<

aereal

#!/usr/bin/env ruby

def collatz(n)
  n == 0 || n == 1 ? n : n.even? ? collatz n / 2 : collatz n * 3 + 1
end

1.upto(3 * 2 ** 52).all? {|i| collatz(i) == 1 } # -> true

aereal

#!/usr/bin/env ruby

require 'fileutils'

# ./src/README
# ./dst/

FileUtils::DryRun.copy_entry 'src/', 'dst/'

# ./src/README

aereal

#!/usr/bin/env ruby
# -*- encoding: utf-8 -*-

f_numbers = Dir.glob("**/*.jpg").map {|jpg|
  `jhead #{jpg}`.gsub(%r{Aperture\s*:\s*(?:f/(\d+(?:\.\d+)?))}) { $1 }
}.compact.map {|f| f.to_f }

f_numbers.group_by {|f| f_numbers.count(f) }.each do |freq, f|
  puts "#{freq}: #{f.uniq.join(",")}"
end