From: Siep Korteling <s.korteling@...>
Date: 2008-10-25T07:05:59+09:00
Subject: Re: help with regular expressions

Vandana wrote:
> Hi all,
> 
> I'm fairly new to programming with regular expressions.  I would like
> some help with the
> following. Consider the format given below as what I will receive in a
> file.
> 
> While reading from the file, Im interested only in reading those lines
> that have the forward-slash' in
> them (lines 9,10,12, 13). How can I do this in ruby?

(...)

You don't need a regular expression for this. To select the lines which 
include a slash, you can do

file = File.new( 'D:/1.txt' )
slashlines = file.select {|line| line.include?( '/' )}
file.close
puts slashlines


The select method will read each line and put each line for which the 
block is true in an array.

hth,

Siep




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