Pad digits and regular expressions

[zackiv31]

Say I want a number to be 6 digits, and its 50... I want to pad it with zeros on the left. Is there a way to do this, or should I just do a length and then pad blahblah...

Also,

Does anyone know how to do repeating in perl regular expressions? Like say I want to find any repetition of dog 100 times in a string, but not (dog)+ Is there a way to do this?

 

[PaulTEG]

$string=50;
$string=sprintf("%0.6d", $string);

2nd question, definitive resource on regexes

http://perldoc.perl.org/perlretut.html

HTH
--Paul

Paul
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