From: William James <w_a_x_man@...>
Date: 2007-08-11T05:54:59+09:00
Subject: Re: Sorting a logfile, how would you write it?

On Aug 10, 1:29 pm, Frank Meyer <lolz.ll...@gmail.com> wrote:
> I've written a little ruby program which can sort logfiles with the
> following format:
>
> 4.text text text
> 1.text text text
> 2.text text text
> 10.text text text
> 2.text2 text2 text2
>
> The file is given as a command line parameter and after sorting the
> entries it writes them back into this file.
>
> The program is in the attachement.
>
> What I want to know is how would you write such a tool in ruby? I'm
> asking this because I'm still learning ruby and I want to learn how to
> do it in ruby (ans its design principles).
>
> Thank you!
>
> Turing
>
> Attachments:http://www.ruby-forum.com/attachment/86/test.rb


File.open( ARGV.first, "r+" ){|file|
  array = file.readlines
  file.rewind
  file.truncate(0)
  file.puts array.sort_by{|s| s[/^\d+/].to_i }
}