Article 678 of comp.sources.misc:
Relay-Version: version B 2.10.3  Pyramid OSx-3.0 85/11/15; site intelisc.UUCP
Path: intelisc!littlei!ogccse!blake!uw-beaver!cornell!mailrus!cwjcc!hal!ncoast!allbery
From: steve@nuchat.UUCP (Steve Nuchia)
Newsgroups: comp.sources.misc
Subject: v05i028: /etc/magic lines for compress
Message-ID: <2643@nuchat.UUCP>
Date: 31 Oct 88 02:59:39 GMT
Date-Received: 31 Oct 88 17:29:04 GMT
Sender: allbery@ncoast.UUCP
Reply-To: steve@nuchat.UUCP (Steve Nuchia)
Organization: Public Access - Houston, Tx
Lines: 26
Approved: allbery@ncoast.UUCP

Posting-number: Volume 5, Issue 28
Submitted-by: "Steve Nuchia" <steve@nuchat.UUCP>
Archive-name: compress.magic

This is one of those little throw-away things that normally
don't get posted.  It was pointed out to me recently that
we need to make an extra effort to get this kind of stuff
out, so here it is.

If you have a file(1) compatible with the one in sysVr3
adding the following lines to /etc/magic will make it
recognize compressed files.  I was motivated to add this
when I imported a bunch of files from BSD systems and the .Zs
all got lopped off.


0	short		40223		compressed data
>2	byte		<0200		- %d bits
>2	byte		0214		- 12 bits
>2	byte		0215		- 13 bits
>2	byte		0220		- 16 bits

-- 
Steve Nuchia	    | [...] but the machine would probably be allowed no mercy.
uunet!nuchat!steve  | In other words then, if a machine is expected to be
(713) 334 6720	    | infallible, it cannot be intelligent.  - Alan Turing, 1947
Article 8256 of comp.unix.admin:
Xref: ptd comp.unix.admin:8256 comp.unix.programmer:7289
Newsgroups: comp.unnix,comp.unix.admin,comp.unix.programmer
Path: ptd!hfglobe!ichips!iWarp.intel.com|uunet!mcsun!dxcern!sunra10.cern.ch!pb
From: pb@sunra10.cern.ch (Peter Beckmann)
Subject: Re: files and /etc/magic
Message-ID: <1992Oct28.134207.2138@dxcern.cern.ch>
Sender: news@dxcern.cern.ch (USENET News System)
Reply-To: peterb@dxcern.cern.ch
Organization: CERN European Lab for Particle Physics
References: <1992Oct27.154107.1768@linus.mitre.org> <1992Oct28.123526.16863@uk03.bull.co.uk>
Date: Wed, 28 Oct 1992 13:42:07 GMT
Lines: 79

Here is some stuff i picked off the net.

0	string		<!OPS		Interleaf ASCII document
#
0	string		<MakerFile	Frame Maker document
0	string		<MIFFile	Frame Maker MIF file
0	string		<MML		Frame Maker MML file
#
# from pbmplus27sep91/magic
# PBMPLUS auxiliary magic numbers file
#
# These are meant to be used with the "file" program to help determine
# the type of a file.  You can add these entries to the system's /etc/magic
# file, or if your version of "file" supports the -m flag you can use
# them that way.
#
# All of these entries use the "string" format so that they will work on
# both big-endian and little-endian machines.
0	string		begin			uuencoded file
0	string		xbtoa			btoa'd file

0	string		P1			PBM file
0	string		P2			PGM file
0	string		P3			PPM file
0	string		P4			PBM "rawbits" file
0	string		P5			PGM "rawbits" file
0	string		P6			PPM "rawbits" file

0	string		\361\0\100\273		CMU window manager bitmap
0	string		yz			MGR bitmap
0	string		\115\115		TIFF file, big-endian
0	string		\111\111		TIFF file, little-endian
#0	string		GIF87a			GIF file
#0	string		GIF89a			GIF file

8	string		ILBM			IFF ILBM file
0	string		This\040is\040a\040BitMap\040file	Lisp Machine bit-array-file
0	string		!!			Bennet Yee's "face" format

#Article 400 of alt.sources:
#From: cameron@spectrum.cs.unsw.oz.au or cameron@cs.unsw.oz.au (Cameron Simpson)
#Subject: some useful additions to your magic file ...
#Date: 21 Mar 92 05:55:23 GMT
#Organization: CS&E Computing Facility, Uni Of NSW, Oz
#
#This is simply a list of a few entries which seem missing from most systems'
#magic files. The first 10 or so entries recognise and classify executable
#scripts, which otherwise tend to be called C source etc. The last few entries
#recognise a couple of common image formats, always useful when trolling for
#users who are wasting disc space when things are tight.
0	string		#!		exec()able script 
>2	string		/bin/sh		- Bourne shell
>2	string		/usr/bin/sh		- Bourne shell
>2	string		/bin/ksh	- Korn shell
>2	string		/usr/local/bin/ash	- NeilBrown's ash
>2	string		/usr/local/bin/ae	- NeilBrown's ae
>2	string		/home/harry/bin/perl	- Perl
>2	string		/usr/local/bin/perl	- Perl
>2	string		/usr/bin/perl	- Perl
>2	string		/bin/awk	- AWK
>2	string		/bin/nawk	- new AWK
>2	string		/usr/bin/nawk	- new AWK
>2	string		/usr/local/bin/nawk	- new AWK
>2	string		/bin/gawk	- GNU AWK
>2	string		/usr/local/bin/gawk	- GNU AWK
>2	string		/bin/csh	- C shell
>2	string		/usr/bin/csh	- C shell
>2	string		/usr/bin/tcsh	- tcsh shell
>2	string		/bin/tcsh	- tcsh shell
0	string		GIF		GIF image archive 
>3	string		87a		- version %3s
>3	string		87A		- version %3s
>3	string		89a		- version %3s
>3	string		89A		- version %3s
0	long		0xffd8ffe0	JPEG image, big endian
0	long		0xe0ffd8ff	JPEG image, little endian
0	string		hsi1		HSI1 image (wrapper for JPEG?)
# for sc files
38	string		Spreadsheet	sc file