taker.rb

#! /usr/bin/ruby
# Date 2014/02/08
# Created by sota1235

require 'open-uri'

# 成功したら配列から削除
$array = [*1..1368]

def save_pic(url)
  fName = File.basename(url)
  # ファイル保存場所
  path = "/hoge/" + fName

  begin
    open(path,'wb') do |output|
      open(url) do |data|
        output.write(data.read)
      end
    end
    print(fName," is success.\n")
    $array.delete(fName.delete(".png").to_i)
    $array.insert fName.delete(".png").to_i - 1, "x" # xを突っ込むことでfor文でのポインタずれを回避
  rescue
    print(fName," is failed.\n")
    File.unlink path
  end
end

base1 = "http://hoge-"
base2 = "-moge/"
for num1 in 48..57 do
  for num2 in $array do
    unless num2=='x'
      save_pic(base1 + num1.to_s + base2 + num2.to_s + ".png")
    end
  end
end