Yes, file handle is still alive in ScriptA. To check I browsed the file using scripts shown below, before and after passing it to ScriptB. 
    print "\n\n\n";
    print "\n".getTempParamFileName()."\n";
        open (AAA, "<".getTempParamFileName());
        while(my $xxx=<AAA>){
          print $xxx;
        }
        close AAA;
#########
    my @pmcmd=("$binDir/runWorkflow.pl",  
                     "-c", "$cluster",
                     "-n", "$node",
                     "-f", getWorkFlowFolder($feeder),
                     "-p", getTempParamFileName(),                    
+  "-w", getWorkFlow($feeder));

    $rc = PB::FileUtils::execute(\@pmcmd, $log);

#########

    print "\n\n\n";
    print "\n".getTempParamFileName()."\n";
        open (AAA, "<".getTempParamFileName());
        while(my $xxx=<AAA>){
          print $xxx;
        }
        close AAA;

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In reply to Re^2: Using File::Temp Names by novicepl
in thread Using File::Temp Names by novicepl

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