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From: rpw3@amdcad.UUCP
Newsgroups: comp.os.minix
Subject: Re: minix shar- is this a sensible thought ?
Message-ID: <14658@amdcad.UUCP>
Date: Sun, 8-Feb-87 05:52:47 EST
Article-I.D.: amdcad.14658
Posted: Sun Feb  8 05:52:47 1987
Date-Received: Mon, 9-Feb-87 02:43:27 EST
References: <1717@hoptoad.uucp> <552@atari.UUCP> <1051@sigma.UUCP>
Reply-To: rpw3@amdcad.UUCP (Rob Warnock)
Distribution: world
Organization: [Consultant] San Mateo, CA
Lines: 28
Keywords: shar formats
Summary: use the Minix format.

+---------------
| There should be concensus on the particular shar format to be used, to 
| avoid the mess we currently have with the many different formats in use
| and complex "unshar" scripts that figure out which one was used.
+---------------

How about using the format produced by the Minix "shar" program? ;-}
This is a C program which produces shars. It uses the "prefix everything
by X" method, and uses "gres" to strip the X's when unpacking. Since
we have therefore a standard format, we can write an unshar which
exactly matches the shar files produced by Minix "shar". 'Nuf said?

p.s. Since Unix doesn't (these days) have "gres", a suitable "gres" for
unpacking such shars on Unix systems is:

	: gres.sh - Unix approximation of "gres"
	from="$1"
	to="$2"
	shift ; shift
	exec sed -e "s/$from/$to/" $*


Rob Warnock
Systems Architecture Consultant

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