Can't execute file

[William Miner]

I¹m new to Octave and I¹m trying to do something on page 25 of the GNU
Octave Manual Version 3. I¹m running on a Mac under OS 10.5.6.

I have two files

dsl017-068-210:Octave williamminer$ cat hello_1_line
printf ("Hello, world!\n");

dsl017-068-210:Octave williamminer$ cat hello
#! octave -qf
# A sample Octave program
printf ("Hello, world!\n");

If I execute octave hello_1_line I get

dsl017-068-210:Octave williamminer$ octave hello_1_line
GNU Octave, version 3.0.3
Copyright (C) 2008 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTIBILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type `warranty'.

Octave was configured for "i386-apple-darwin8.9.1".

Additional information about Octave is available at http://www.octave.org.

Please contribute if you find this software useful.
For more information, visit http://www.octave.org/help-wanted.html

Report bugs to <bug at octave.org> (but first, please read
http://www.octave.org/bugs.html to learn how to write a helpful report).

For information about changes from previous versions, type `news'.

Hello, world!

However if I execute ./hello I get

dsl017-068-210:Octave williamminer$ ./hello
-bash: ./hello: octave: bad interpreter: No such file or directory

What am I doing wrong?

Thanks!

Buff Miner

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