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
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