From: Phrogz <phrogz@...>
Date: 2008-01-13T11:15:25+09:00
Subject: Re: Simple Regex help

On Jan 12, 6:37 pm, "itsme213" <itsme...@hotmail.com> wrote:
> I have a file of code that has "!"-delimited lines and other non !-delimited
> lines. I want to remove all the "!"-delimited lines
>
> !some stuff that i do not want!
>
> lots of other stuff that i want
> lots of other stuff that i want
>
> !some stuff that i do not want!
>
> lots of other stuff that i want
> lots of other stuff that i want
>
> What would be a simple ruby script to use regex and remove all the
>   !....!

IO.readlines( 'file.txt' ).delete_if{ |line| line =~ /^!.*!$/ }
#=> returns an array; you may want to .join it with the newline
seperator.