Many obfus do system(($^O eq 'MSWin32')?'cls':'clear'). Others erroneously have $^O=~/win/i or similar instead, which breaks on cygwin (and darwin?).

In reply to Re: RFC: Draft Q & A: How to clear the screen in a perl program by ysth
in thread RFC: Draft Q & A: How to clear the screen in a perl program by NovMonk

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