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  1. or download this
    C:\test>start /b perl -E"say $$; sleep 10000"

...
C:\test>perl -E"kill 21, $$ or say $^E; say 'ending';"
The parameter is incorrect
ending
  2. or download this
    C:\test>perl -wE"$SIG{BREAK}=sub{ say 'BREAKing' }; &{$SIG{BREAK}}; sa
+y 'ending'; "
BREAKing
ending