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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <010907152846.ZM18111@candle.brasslantern.com>
Date: Fri, 7 Sep 2001 15:28:46 -0700
In-Reply-To: <20010907234517.A6901@thelonious.new.ox.ac.uk>
Comments: In reply to Adam Spiers <adam@spiers.net>
        "Re: Switching shell safely and efficiently" (Sep  7, 11:45pm)
References: <20010907193550.A5678@thelonious.new.ox.ac.uk> 
	<1010907190526.ZM17902@candle.brasslantern.com> 
	<20010907234517.A6901@thelonious.new.ox.ac.uk>
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To: Adam Spiers <adam@spiers.net>, zsh-workers@sunsite.dk
Subject: Re: Switching shell safely and efficiently
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On Sep 7, 11:45pm, Adam Spiers wrote:
> Subject: Re: Switching shell safely and efficiently
> Bart Schaefer (schaefer@brasslantern.com) wrote:
> >     run_shell=`$myshell -c "echo exec $myshell" || echo :`
> >     eval $run_shell '"$@"'

Now that I think about it, that could be just:

  eval `$myshell -c "echo exec $myshell" || echo :` '"$@"'

> more stylish than my attempt, it's not quite as efficient through
> having to fork the shell before running it properly.  To this end, a
> slight improvement might be skipping start-up files

I knew you were going to say that.

I chose to omit the -f in case the contents of the startup files are what
causes the shell to fail.  You did want safety ...