Isn't "while" suppose to be the opposite of "unless"?

No it isn't. "while" is the opposite of "until". The opposite of "unless" is "if". All of this is in the fine documentation of Compound Statements.

In reply to Re^3: Regex match on implicit default variable ($_) in a script, not a one liner by hippo
in thread Regex match on implicit default variable ($_) in a script, not a one liner by Todd Chester

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