From: "Skye Shaw!@#$" <skye.shaw@...>
Date: 2007-06-10T02:45:04+09:00
Subject: Re: Newb Wants to Better His File, Dir code

On Jun 8, 8:42 pm, Dan Zwell <dzw...@gmail.com> wrote:
> Michael T. Richter wrote:
> > On Sat, 2007-09-06 at 11:35 +0900, R.B.Love wrote:
>
> >> I've got code working to do what I want but I'm hoping there is a
> >> better way.  Mine seems clumsy.
>
> >> My goal is to search over all files,  identify all that are directories
> >> and then do something to each directory.  I don't need to go into
> >> directories recursively yet.

<snip OP's code>

> > Try:
>
> >         dirs = Dir.entries(".").reject{|e| /\.{1,2}/ =~ e}.find_all{|e|
> >         File.directory? e}
>
> > At this point you have a list of directory names.  You can do whatever
> > you like to that list using .each(), .inject(), .collect(), etc.
>
> The above has a small bug: it rejects all hidden directories. If you
> want to block only ".." and ".", then change it to:
>
>         dirs = Dir.entries(".").reject{|e| /\.{1,2}$/ =~ e}.find_all{|e|
>                 File.directory? e}

If hidden directories are not important, maybe try:

[sshaw@localhost ~]$ ls -a
.              .emacs.d           .ICEauthority        .openoffice.org2.0
..             .esd_auth          images               .recently-used
addr.pl        .evolution         java                 ruby

<snip long listing>

ruby -le'Dir["/home/sshaw/*/"].each { |d| print d }'
/home/sshaw/video/
/home/sshaw/me/
/home/sshaw/ruby/
/home/sshaw/java/
/home/sshaw/dos-mundos/
/home/sshaw/cti/
/home/sshaw/wb/
/home/sshaw/images/
/home/sshaw/music/
/home/sshaw/Desktop/
/home/sshaw/GDMX/
/home/sshaw/mysql/