From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from euclid.skiles.gatech.edu (list@euclid.skiles.gatech.edu [130.207.146.50]) by werple.net.au (8.7/8.7.1) with ESMTP id WAA01107 for <mason@werple.mira.net.au>; Fri, 19 Jan 1996 22:55:58 +1100 (EST)
Received: (from list@localhost) by euclid.skiles.gatech.edu (8.7.3/8.7.3) id GAA17265; Fri, 19 Jan 1996 06:33:26 -0500 (EST)
Resent-Date: Fri, 19 Jan 1996 06:33:07 -0500 (EST)
From: Zoltan Hidvegi <hzoli@cs.elte.hu>
Message-Id: <199601191132.MAA10626@bolyai.cs.elte.hu>
Subject: Re: Zsh as /bin/sh on Linux?
To: jepler@herbie.unl.edu (Jeff "Obik" Epler)
Date: Fri, 19 Jan 1996 12:32:04 +0100 (MET)
Cc: zsh-users@math.gatech.edu
In-Reply-To: <9601182122.AA23445@herbie.unl.edu> from "Jeff "Obik" Epler" at Jan 18, 96 03:22:36 pm
Organization: Dept. of Comp. Sci., Eotvos University, Budapest, Hungary
Phone: (36 1)2669833 ext: 2667, home phone: (36 1) 2752368
X-Mailer: ELM [version 2.4 PL24 PGP3 *ALPHA*]
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Resent-Message-ID: <"Q1lU71.0.QD4.o5u_m"@euclid>
Resent-From: zsh-users@math.gatech.edu
X-Mailing-List: <zsh-users@math.gatech.edu> archive/latest/166
X-Loop: zsh-users@math.gatech.edu
X-Loop: zsh-workers@math.gatech.edu
Precedence: list
Resent-Sender: zsh-workers-request@math.gatech.edu

> A bigger problem (IMO) than worrying about odd sh compatibilities when
> using (trying to use) zsh as /bin/sh under Linux, is all the
> dependancies on Bash featurisms, since bash is the /bin/sh on most
> Linux systems.

Zsh know the extra features that sh scripts under Linux tends to use.  I thing
these are mostly the ${...%...} type substitutions.  I think that this
substitution syntax is part of the POSIX shell specification.  If one wants to
use a lightweight replacement for bash she may also try pdksh which tries to
be posix conformant and know almost everything that bash knows and it is even
faster than that.

Cheers,

Zoltan