Is there a Perl specific control break?

No. A control break is a general structured programming technique. It's not a feature of a specific programming language.

Or should I just permutate various loop control statements like unless, continue etc.?

Control breaks are implemented using if-then(-else) constructs inside and after an ordered-record-processing loop. Marshall explains the control break technique nicely in his reply to your inquiry.

In reply to Re^7: Hashes of Hashes of Arrays? Is it possible? by Jim
in thread Hashes of Hashes of Arrays? Is it possible? by capriguy84

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