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  1. or download this
    sub retcode_full_test {
        # code taken from perldoc -f system
        if ($? == -1) {
    ...
            return $? >> 8;
        }
    }
    
  2. or download this
    sub retcode_full_test {
        # code taken from perldoc -f system
        if ($? == -1) {
    ...
            return $? >> 8;
        }
    }