Input file for shutdown warning?

[John Levine]

In article <20110517021633.26b47751 at gumby.homeunix.com> you write:
>On Mon, 16 May 2011 17:38:21 -0700
>Alexander Lardner <linuxtux37 at gmail.com> wrote:
>
>> Hello,
>> Is it possible to do something like this:
>> 
>> shutdown -p now /root/somefile

 # shutdown - -p now < /root/somefile

If you had read the man page, you would already know that.

R's,
John