Is it a Perl program or a Perl script?

    Certainly. :-)

    Current UNIX parlance holds that anything interpreted
    is a script, and anything compiled into native machine
    code is a program.  However, others hold that a program
    is a program is a program: after all, one seldom discusses
    scripts written in BASIC or LISP.  Larry considers it
    a program if it's set in stone and you can't change it,
    whereas if you go in and hack on it, then it's a script.

    But doesn't really matter.  The terms are generally 
    interchangeable today.