From: Stefan Lang <perfectly.normal.hacker@...>
Date: 2008-04-10T20:27:21+09:00
Subject: Re: Get oldest File from Directory?

2008/4/10, Christian Kerth <christian.kerth@dynamicmedia.at>:
> Hey!
>
>  What is the easiest way to retrieve the oldest (oldest modification
>  date) file from a directory?

def oldest_file(dir)
  Dir.entries(dir).map { |e|
    File.join(dir, e)
  }.select { |f|
    File.file? f
  }.sort_by { |f|
    File.mtime f
  }.first
end

This ignores directories.