From owner-freebsd-questions@FreeBSD.ORG  Wed Oct 26 07:19:57 2005
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From: "Michael C. Shultz" <ringworm01@gmail.com>
To: freebsd-questions@freebsd.org
Date: Wed, 26 Oct 2005 00:21:21 -0700
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Cc: "Andrew P." <infofarmer@gmail.com>
Subject: Re: Which version of FreeBSD a binary was compiled for?
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On Wednesday 26 October 2005 00:01, Andrew P. wrote:
> On 10/26/05, Will Maier <willmaier@ml1.net> wrote:
> > On Wed, Oct 26, 2005 at 02:24:54AM +0400, Andrew P. wrote:
> > > How to tell? Apart from trying to launch it on different versions
> > > without COMPAT* in the kernel?
> >
> > file (1)
>
> I don't mean to push it, but how file would ever help
> me to know subj?
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Here is an example:

file /usr/bin/man

on my machine outputs:

/usr/bin/man: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), for 
FreeBSD 5.4-CURRENT (rev 3), dynamically linked (uses shared libs), stripped

-Mike