Forcing /bin/sh in a script under V/386 3.2 Korn shell

[Chris Siebenmann]

In article <14445 at bfmny0.UUCP> bfmny0!tneff at uunet.UU.NET (Tom Neff) writes:
| I use Korn shell and am happy with it, but I want certain shell
| scripts to be intepreted by the Bourne shell instead.  

 On a BSD Unix, one could put "#! /bin/sh" at the start of your script
and it would work. Unfortunately, System V doesn't have this (and
worse yet, your vendor has gratuitusly hacked csh so many scripts will
break under it), so the best substitute (swiped from Perl v2's
Configure script) is:

	(alias) >/dev/null 2>&1 && (exec /bin/sh $0 ${1+"$@"})

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