Small introspective program

[Oliver Laumann]

In article <15462 at smoke.brl.mil> gwyn at smoke.brl.mil (Doug Gwyn) writes:
> >And in any sh|csh|tcsh on unix, this one is about as short as you can get:
> >        cat $0
> 
> No, the program contained between the following quotation marks is shorter: ""

Hmmm...

% /bin/sh
$ > foo
$ chmod +x foo
$ ./foo
Cannot exec binary file.
sh: ./foo: cannot execute
$ ^D

This is what happens under SunOS 4.1.  Yes, I know, the original
poster said "on UNIX", but I found the fact that the SunOS shell
refuses to execute an empty file so funny that I wanted to share
it with you.

Don't tell me that this has something to do with the fact that Sun
switched to POSIX with SunOS 4.1...