Executing that script via DBD::Sybase would be a lot easier to trap the errors.

That's pretty straightforward - you just need to read in the file and split it on the \ngo\n. Then submit each SQL block with a loop:

$sth = $dbh->prepare($sql);
do {
    while(my $row = $sth->fetch) {
        print "@$r\n";
    }
} while($sth->{syb_more_results});
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Michael