From: Dave Thomas <Dave@...>
Date: 2002-05-06T11:54:44+09:00
Subject: Re: newbie Q: how to strip blank lines from file?

Stewart Midwinter <stewart@NOWHERE_midwinter.ca> writes:

> Well, I've spent a few days reading about Ruby, and want to try my first 
> project: a little utility that will read a file that has too many blank 
> lines in it, and strip out all of those blank line (could contain spaces or 
> tabs).

A simple solution might be something like

     IO.foreach("snip.txt") do |line|
        puts line unless line.strip.empty?
     end

Or, using the regular expression approach you used:

     IO.foreach("snip.txt") do |line|
        puts line unless line =~ /^\s$/
     end



Cheers


Dave