From: tamouse mailing lists <tamouse.lists@...>
Date: 2013-01-30T10:31:47+09:00
Subject: Re: Linux mode bits

On Tue, Jan 29, 2013 at 4:06 PM, Rob Marshall <lists@ruby-forum.com> wrote:
> Is there a class available for handling the Linux mode bits? i.e.
> Assuming I have the access mode of a file as a number, e.g. 33188
> (octal: 0100644), can I test the mode bits? In Python I can use the
> 'stat' module which has all of the bits defined as well as tests like:
> S_ISREG(). Is there something analogous in Ruby?

minimally, FIle.stat(filename).mode will give the file's mode bits as a Fixnum:

1.9.3-head :007 > "%o" % File.stat('.emacs').mode
 => "100644"