From: Alex <imphasing@...>
Date: 2009-07-21T05:34:46+09:00
Subject: Re: Dir.entries showing . and .. , how come?

On Mon, Jul 20, 2009 at 4:19 PM, David Masover<ninja@slaphack.com> wrote:
> On Monday 20 July 2009 03:05:18 pm Mmcolli00 Mom wrote:
>> Why is it that there are '.' and '..' in my output?
>
> Those are hidden directories on Unix, pointing to the current and parent
> directory. I'm not sure why they're on Windows, too...
>
>> I want to create a
>> list of all the files in this directory without showing the . and .. at
>> the top of the list. What do you do for this?
>
> I'd do this:I
>
> #snippet
> myfolder = "c:/myfolder"
>
> Dir.entries(myfolder).each do |filename|
>  puts filename unless filename =~ /^\.\.?$/
> end
> #end snippet
>
> You could do it other ways, too. I'm not sure which is faster.
>
> Of course, this might still not do what you want -- it's going to include
> folders, too. If you just want files, you could do something like this:
>
> Dir.entries(myfolder).each do |filename|
>  puts filename if File.file?(filename)
> end
>
>


I would just do something like this:

Dir.entries(dir).reject{|entry| entry =~ /^\.{1,2}$/}

But my regex-fu may be weak. Since it's only 2 possibilities, it might
be simpler to just do this:

Dir.entries(dir).reject{|entry| entry == "." || entry == ".."}


That's really just semantics, though.



Alex