From: William James <w_a_x_man@...>
Date: 2007-01-03T08:25:05+09:00
Subject: Re: Delete line from file


Jules wrote:
> Hi,
>
> Given a line number, what is the best way to delete this line from a
> file?
>
> And given an array of line numbers, what is the best way to delete
> these lines from a file?
>
> Thanks,
>
> Jules

lines = IO.readlines('junk1')
[1,3,5].each{|n| lines.slice!(n) }
open('junk1','w'){|f| f.puts lines}