for this part of code is given down and it is working fine. This just gives the idea of how output of different process is handled in temprary files.
A number of subprocessed (more than three at least) are forked and these subprocess logs their output in temporary files. as a processes completes its execution its output from its temporary file is displayed on the consol. the code for output handling is given below (It does not include the code for forking process, autofleshing, reading from childs IO::Select and other stuff.) it works fine.
my question is: can i display the output of one process in real time instead of loging it in temporary file and the output of other the remaining processes should be loged in temporary files simultaneosuly. The peice of code 
------------------
sub Pooled_function {

  my($id,$parentfh) = @_;
  print $parentfh "start\n";

  close(STDOUT);
  close(STDERR);

  while (1) {
    chomp(my $pclass = <$parentfh>);

    my $file = "$build_logs_dir/$pclass.log";

    open(STDOUT, "> $file")  or die "Can't redirect stdout: to $file "
+;
    open(STDERR, ">&STDOUT");

# -----------   Do the stuff ------

    close(STDOUT) or die "Can't close STDOUT: $!";
    close(STDERR) or die "Can't close STDERR: $!";

    print $parentfh "$id $pclass $result\n";
  }

  close($parentfh);
}

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In reply to output of multiple processes by scarus

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