Input file for shutdown warning?

[RW]

On 17 May 2011 01:24:56 -0000
"John Levine" <johnl at iecc.com> wrote:

> 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
> 

shutdown  -p now - < /root/somefile