From: Austin Ziegler <halostatue@...>
Date: 2005-03-01T06:02:27+09:00
Subject: Re: catting files

On Tue, 1 Mar 2005 05:17:03 +0900, Mark Probert <probertm@acm.org>
wrote:
> There is approximately an order of magnitude difference in the
> performance of these two snippets. Is there a faster way of doing
> the pure Ruby version?

> ### use the system call 'cat'
> def sys_cat
>   of = "plato.txt.cat"
>   clean(of)
>   l = `cat Plato/*.txt > #{of}`
> end

  def faster_cat
    of = "plato.txt.fct"
    clean(of)
    File.open(of, "wb+") do |outf|
      Dir["Plato/*.txt"].each do |inf|
        outf.puts IO::read(inf)
      end
    end
  end

As I don't have the "Plato/*.txt" files, I can't test it, but that
you're not splitting the file into multiple lines and iterating over
them will be faster.

-austin
-- 
Austin Ziegler * halostatue@gmail.com
               * Alternate: austin@halostatue.ca