From: William James <w_a_x_man@...>
Date: 2007-09-26T18:00:05+09:00
Subject: Re: concatenate a set of files

On Sep 25, 11:04 pm, Lloyd Linklater <ll...@2live4.com> wrote:
> As a ruby nuby I am not yet good enough to golf this, but I went through
> the standard books to cobble this together mostly to say that it should
> be easy to figure this out.  It took me just a few minutes for this so,
> if you get the books, it should work for you too.
>
> my_files = ["f:\\belfry\\1.txt", "f:\\belfry\\2.txt",
> "f:\\belfry\\3.txt"]
> f = File.new("c:\\joined.txt", "a+")
> my_files.each do |f_name|
>   f_in = File.open(f_name, "r")
>   f_in.each {|f_str| f.puts(f_str)}
>   f_in.close
> end
> f.close

If everything will fit in memory at once, then
we can proudly say, "We don't need no stinkin' loops!"

my_files = ["f:/belfry/1.txt", "f:/belfry/2.txt",
"f:/belfry/3.txt"]

File.open("c:/joined.txt","w"){|f|
  f.puts my_files.sort.map{|s| IO.read(s)} }