[Nolug] Perl Question

Hi.

I'm trying to figure out a Perl script. One line in it has me baffled.

I believe it is intended to extend a filename till it is unique. But I don't
quite grasp the syntax.

 $filename .= rand(10) while (-f "$filename.tmp") || (-f "$filename.sub");

Is this a shorthand way of writing a "do while" loop?

And what does the "-f" do?

Thanks!

John

    John Souvestre - Southern Star - (504) 888-3348 - www.sstar.com

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Received on 05/31/07