in reply to Re^2: Regex match on implicit default variable ($_) in a script, not a one liner
in thread Regex match on implicit default variable ($_) in a script, not a one liner

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.

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