From: Caleb Clausen <vikkous@...>
Date: 2010-08-24T01:57:50+09:00
Subject: Re: directory listing without . and ..

On 8/23/10, Ryan Davis <ryand-ruby@zenspider.com> wrote:
> On Aug 22, 2010, at 23:40 , Rajarshi Chakravarty wrote:
>> Hi,
>> How can I get an array of all legitimate sub directories in the current
>> directory?
>>
>> path = "D:/Traffic"
>> Dir.chdir(path)
>>
>> This gives 2 extra entries "." and ".."
>> Dir.open(stationDir).entries.reject{|f| File.file?(f)}
>
> In all my years of ruby I don't think I've ever used Dir.open(...).entries.
> I almost _always_ use Dir.glob (aka Dir[...]). I also almost always use the
> block form for chdir.
>
> Dir.chdir("/Users/ryan") do
>   p Dir[File.join("Work", "*")]
> end
>
> Outputs:
>
>> ["Work/Icon\r", "Work/cvs", "Work/git", "Work/mirrors", "Work/misc",
>> "Work/p4", "Work/svn"]
>
> glob "*" outputs all "visible" files (non-dot files) but it can do a whole
> lot more too. ri Dir.glob for more details.

Omitting all hidden entries may not be what OP wants. This skips not
only '.' and '..', but also (eg) '.git'. I find this way more robust:

Dir.entries(whatever)-['.','..']