perl subroutine (SEC: UNCLASSIFIED)

[Martijn van Oosterhout]

On Wed, Sep 25, 2002 at 04:56:44PM +1000, Lisman, FLGOFF Jarrad wrote:

<snip>

As Sam said, you need you say $line = substr( ... ) to actually make changes.

> sub subroutine
> {
> 	substr
> 	substr
> 	return($_)
> }

Similarly you need to say something like $_ = shift or $line = shift to get
the argument passed to the function. A few prints should have pointed out
that $line was never changing.

Do you have any books on perl? There are several good ones...
-- 
Martijn van Oosterhout   <kleptog at svana.org>   http://svana.org/kleptog/
> There are 10 kinds of people in the world, those that can do binary
> arithmetic and those that can't.