Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83 (MC830713); site edee.UUCP Path: utzoo!watmath!clyde!floyd!vax135!ukc!edcaad!edee!aegl From: aegl@edee.UUCP (Tony Luck) Newsgroups: net.unix-wizards Subject: Re: magic numbers Message-ID: <176@edee.UUCP> Date: Mon, 19-Mar-84 06:23:00 EST Article-I.D.: edee.176 Posted: Mon Mar 19 06:23:00 1984 Date-Received: Thu, 22-Mar-84 04:06:25 EST References: <2639@alice.UUCP> <199@opus.UUCP> Organization: Electrical Eng., Edinburgh U., Scotland Lines: 7 One really useful effect of having the kernel look for '#!' is that shell scripts are then really just like other executables (there should be no way to tell by running it whether a program is a shell file or a binary) i.e. you can make them setuid if you need to, or use them as login shells without having to fix login/newgrp/su to know about ENOEXEC. Tony Luck { ... UK !ukc!edcaad!edee!aegl }