From: William James <w_a_x_man@...>
Date: 2007-09-26T17:45:14+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"]

Even under windoze, Ruby lets you use the forward slash
in paths.

> 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
>
> disclaimer:  I apologize for the look and feel of the 'compiled
> language' approach.  I am still a n00b to the ruby way.  :)

Let Ruby close the files for you.

my_files = ["f:/belfry/1.txt", "f:/belfry/2.txt",
"f:/belfry/3.txt"]
File.open( "c:/joined.txt", "w" ){|f_out|
  my_files.each {|f_name|
    File.open(f_name){|f_in|
      f_in.each {|f_str| f_out.puts(f_str) }
    }
  }
}