Re: determine the variable causing the error: Use of uninitialized value

It may help to trap the issue using a SIG handler. You can then do things like set a breakpoint in the handler and inspect variables, or add extra diagnostics to help track down the issue. Sig handlers look like:

$SIG{__WARN__} = \&DoWarn;
$SIG{__DIE__}  = \&DoDie;


sub DoWarn {
    my @params = @_;

    warn @params;
    return;
}


sub DoDie {
    my @params = @_;

    die @params;
}
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Premature optimization is the root of all job security

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