if ($opt_h){
    die "\agecmd.pl -d[days to age]\n";
}

if ($opt_d){
    if ($opt_d gt 9){ #tests for strings
        die "Error: days option must be a number.  Use agecmd.pl -d[da
+ys to age]\n";
    }else{
    $agedays=$opt_d;
    }
}