# "if..."
 if (
    # the number of details records
    $details_record_count
                          # does not tally with (is not equal to)
                          != 
                              # the count given in the total count field at the end of the file
                              # (we'll assume you've read the file and have it already)
                              $total_count) 
                                            # then
                                            {
    # 1.1 Reject the file
    push @rejected_files, @filename;
    # 1.2 Record error details in the error log
    print $error_log "$file total count field does not agree ($details_record_count actual, $total_count in file)\n";
}

##</code><code>##

# if the number of actual detail records doesn't match the count in the file, mark this file as rejected and print a message to the error log.
 if ( $details_record_count != $total_count) {
    push @rejected_files, @filename;
    print $error_log "$file total count field does not agree ($details_record_count actual, $total_count in file)\n";
}