perltutorial root Unless statements allow you to say unless something is true do this. For example:<BR> <PRE> $value=20; unless($divisor==0){ #so long as the $divisor isn't equal to 0 $value=$value/$divisor; #go ahead and divide $value by $divisor } else { $divisor=1; #otherwise set $divisor to 1 } </PRE> If you've got that I suggest you take a look at [while loops]