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Path: utzoo!watmath!clyde!floyd!cmcl2!rna!n44a!wjh12!vaxine!reg
From: reg@vaxine.UUCP
Newsgroups: net.unix-wizards
Subject: An alternative to using #!
Message-ID: <212@vaxine.UUCP>
Date: Wed, 14-Mar-84 19:08:15 EST
Article-I.D.: vaxine.212
Posted: Wed Mar 14 19:08:15 1984
Date-Received: Fri, 16-Mar-84 03:12:19 EST
Lines: 24



     There has been an excessive amount of discussion recently about making
sure that shell scripts are "automatically" executed by the correct shell. Along
with this has gone a lot of chastising of the #! construct (which, as an aside,
I happen to think is a nice feature and not at all inconsistent with the
407/410/413 magic number stuff exec(2) already did).  If you are *really* upset
with using #! or are worried that it won't work on every system, here is what
you do:

        exec /bin/my-own-personal-shell-and-the-hell-with-everyone-else <
        EOF

I believe you will find the "exec" intrinsic in both the Bourne shell and the C
shell.  (I don't know (nor care, but that is beside the point) about the Korn
shell.)

     Can we change the topic, now that we have beaten this dead horse into
sub-atomic particles?

                                                Rick Genter
                                                Automatix Inc.
                                                linus!vaxine!reg