From: Michael Guterl <mguterl@...>
Date: 2008-08-29T00:26:37+09:00
Subject: Re: Uptime Since... (#174)

On Thu, Aug 28, 2008 at 11:01 AM, Matthew Moss <matthew.moss@gmail.com> wrote:
>> This works for me on OS X.
>>
>> require 'time'
>> Time.parse `last | tail -1`
>
> That doesn't come close to working for me on OSX. There are many more
> timestamps in that file than just the reboots. The version Erik
> provided works correctly.
>

FWIW, `last | grep reboot` returns nothing for me on my MacBook.