From: "Bashar A. Asad" <baasad@...>
Date: 2001-12-22T09:06:39+09:00
Subject: [ruby-talk:29273] Re: upper case to lower

On Saturday 22 December 2001 02:47, you wrote:
> Hello,
>
> At Sat, 22 Dec 2001 08:00:08 +0900,
>
> Bashar A. Asad <baasad@qualitynet.net> wrote:
> > am trying to write a script that will read in all the file names in dir X
> > and convert the upper case letters to lower case. How can do such thing
> > in ruby?
>
> There are some ways.
>
> Dir.entries(X).each do |f|
>   (n = f.dup).downcase! and File.rename(File.join(X, f), File.join(X, n))
> end
>
okey I don't understand the "!" part why do u have it

> Dir.open(X) do |d|
>   d.each do |f|
>     (n = f.dup).downcase! and File.rename(File.join(X, f), File.join(X, n))
>   end
> end
>
> # differs a bit
> Dir.glob(File.join(X, "*")) do |f|
>   d, n = File.split(f)
>   n.downcase! and File.rename(f, File.join(d, n))
> end
>
>
> Nobu Nakada