[ILUG] shebang line curiosity

[Kevin O' Riordan]

Hi everybody,

I thought that any executable could be specified on the shebang line,
but when I try it, I can only use binaries.  For example:

    chewie ~ $ cat a.cat
    #!/bin/cat
    a_one
    a_two
    a_three

    chewie ~ $ ./a.cat
    #!/bin/cat
    a_one
    a_two
    a_three

Above is as expected.  Below is what happens when I try to use a.cat in
the shebang line of b.a:

    chewie ~ $ cat b.a
    #!/home/sysops/kor/a.cat
    b_one
    b_two
    b_three

    chewie ~ $ ./b.a
    ./b.a: b_one: command not found
    ./b.a: b_two: command not found
    ./b.a: b_three: command not found

For some reason that I can't see, it's trying to execute each of the
lines in b.a using the interpreter given in a.cat, instead of using
a.cat itself as an interpreter (which is what I'm trying to do).

Now, the more I look at this I the more I think I shouldn't be doing
it, but if anyone can see why this behaviour is occurring, or even how
to get the desired behaviour, then I'd be thrilled.

cheers
-kev

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