I think you want to add anchors to your regex -- 
 if($Number =~ m/^\d{1,8}$/){
     $N = $Number;
 } else {
     print("line has more than 8 digits!\n");
 }

[download]
This seems to satisfy the requirement -- '12345678' and '123456' don't print; '12345654321' does.

----
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OGB

In reply to Re: matching between 1 to 8 digits but not more by Old_Gray_Bear
in thread matching between 1 to 8 digits but not more by ozgurp

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