From: Stefan Lang <langstefan@...>
Date: 2005-10-13T03:48:34+09:00
Subject: Re: Removing blank lines

On Wednesday 12 October 2005 20:32, Esteban Manchado Vel�zquez wrote:
> Hello Basi,
>
> On Thu, Oct 13, 2005 at 03:26:52AM +0900, basi wrote:
> > Hello,
> > How does one delete blank lines from a text file? (I did try a
> > number of things, but, I can't get any to work.)
[...]
> Or you mean writing back the result to the file? In that case, I
> guess you'll have to write it to another, temporal file, and then
> move it to the original path.

Without tempfile:

    ruby -e 'text = File.read "text"; open "text", "w" do |f| f << 
text.gsub(/\n{2,}/, "\n") end'

Regards,
  Stefan