### run backup command ###

        my @system_params = ( "-o", "log/nix_backup_wrap", "$var{username}", "./backup_run.plX"  );
        my $pid = open my $cmd, "-|",  './nix_backup_wrap', @system_params or warn "$!\n";

        my $backup_process_status = $? >> 8;
        my @backup_status_message;

        print "BACKUP PROCESS STATUS: $backup_process_status\n";
        if ( $backup_process_status == 0 ) {
                $msglog->write( "Success starting backup process!" );
                push @backup_status_message, "Success starting backup process!";

                open 'PID', '>', $PID_FILE or die "Status $var{status}: Tried to open $PID_FILE $!\n";
                print PID "$pid\n";
                close PID;
        } else {
                $err_msglog->write( "Error starting backup process!" );
                push @backup_status_message, "Error starting backup process!";
        }


    $jsonObject = {
      msgdata => "BACKUP STATUS MESSAGE: @backup_status_message with PID: $pid",
                pid => $pid,
                lposition => $var{lposition},
                count => $var{count},
                segment => $var{segment},
                status => $var{status},
                backup_process_status => $backup_process_status
                };
    my $jsonEncoded = encode_json $jsonObject;

    print WB_OUT $cgi->header(-type => "application/json", -charset => "utf-8");
    print WB_OUT $jsonEncoded;