From: Aron Stansvik <elvstone@...>
Date: 2004-10-13T01:03:04+09:00
Subject: Re: How to get and compare file lists in directory?

s/newfile/new_file

On Tue, 12 Oct 2004 17:39:20 +0900, Brian Schr�der
<ruby@brian-schroeder.de> wrote:
> nkb wrote:
> > Hi.
> >
> > I've a directory with a long list of files (e.g. *.rb, *.txt, etc.). All
> > my ruby files are named like 00001.rb, 00002.rb up to 05000.rb or so.
> > What I am really interested is to get the ruby file list and compare it
> > with an existing list. And if this new list has additional files, I
> > would invoke another program with just the integer part of the file as
> > the arugment. (i.e. runmyprogram (5000) instead of runmyprogram (05000.rb))
> 
> Please note, that in ruby you have to but the argument list with the
> method call. ie run_my_program(5000).
> Also for methods snake case is used, so for better readablity enter "_"
> between the words.
> 
> >
> > My ruby knowledge allows me to write up to here:
> > directory = Dir
> > puts Dir.pwd
> > puts Dir.entries(Dir.pwd)
> >
> > Could anyone help or point me to how to get set the rest of my
> > requirement? Thanks!!
> >
> 
> Warning: Typed directly into the email:
> 
> oldfiles = (File.exist?'old_rb_files.lst') ?
> File.open('old_rb_files.lst'){|file|file.read.split("\n")} : []
> new_files = Dir['*.rb'] - old_files
> new_files.each do | new_file |
>   puts "Do something with #{newfile}"
> end
> 
> File.open('old_rb_files.lst', 'a+') do | file |
>   if /(\d+).rb/ =~ file
>   run_my_program($1.to_i)
> end
> 
> regards,
> 
> Brian
> --
> Brian Schr�der
> http://ruby.brian-schroeder.de/
> 
>