print LOG "Some message like, \$v=$v\n" if DEBUGING;

##</code><code>##

do this or die "couldn't do it.";

##</code><code>##

$SIG{__DIE__}=sub {print LOG "Script Died" and close LOG if DEBUGING};
# is what I have, but I want:
$SIG{__DIE__}=sub {print LOG "Script Died: $msg" and close LOG if DEBUGING};