ip_nuts.rb

require 'iconv'
require 'rubygems'
require 'ipparse'

write_now = Time.now

counts = {}
comma = ','
open "member22.csv" do |f|
  loop do
    f.gets comma
    break if f.eof?
    f.gets comma
    ip = f.gets(comma).chop
    if counts[ip]
      counts[ip] += 1
    else
      counts[ip] = 1
    end
  end
end

open "countMember22.csv", 'w' do |f|
  Iconv.open 'GBK', 'UTF-8' do |i|
    counts.each {|k, v| f.puts "#{i.iconv IPParse.parse k} #{v}" }
  end
end

puts Time.now - write_now