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From: perry@ccssrv.UUCP (Perry Hutchison)
Newsgroups: comp.sources.wanted,comp.unix.questions
Subject: Re: more knowledgeable unix "file" program
Summary: see magic(5) and file(1)
Keywords: file, unix
Message-ID: <712@ccssrv.UUCP>
Date: 6 Oct 89 01:46:50 GMT
References: <1989Oct4.160115.26561@agate.berkeley.edu>
Reply-To: perry@ccssrv.UUCP (Perry Hutchison)
Followup-To: comp.unix.questions
Distribution: na
Organization: Control-C Software, Inc., Beaverton, OR
Lines: 10

In article <1989Oct4.160115.26561@agate.berkeley.edu>
jim@insect.berkeley.edu (Jim Bradley) writes:

> I would like a "file" program for unix that identifies
> more file formats that the Sun OS 3.5 version.

The file(1) command uses a file of "magic numbers" stored in /etc/magic
to recognize file formats.  Additional formats can be recognized by adding
appropriate entries there, or in an alternate "magic numbers" file
specified by the -m option.