My apologies to kennethk it appears I did not read the thread carefully enough and he has already stated what is written below.

[3-30] does not match line numbers 3 through 30. It matches a single character, either 3 or 0. Only one line $out2 has either a 3 or 0 as its line number, hence that is the one that is matching. To match the numbers 3 through 30, you need a regular expression like this: (?:[3-9]|[12]\d|30). To explain a bit:

• (?:...) is a "non-capturing" regular expression. That is, it matches a run of characters without stuffing the match into a variable.
• | (the pipe) marks alternative regular expressions. Only one of the alternatives needs to match.
• [...] matches one among a list of alternative characters. Ranges of characters may be indicated using char dash char
• \d matches any digit, i.e. 0 through 9

Please see perlretut for a fuller explanation of each part of the regular expression.

Best, beth