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  1. or download this
    use IPC::Open2;
    use Symbol;
    ...
    
       return $pid;
    }
    
  2. or download this
    use MyModule;
    
    my $session = new MyModule();
    $pid = $session->connect_to_cli();
    
  3. or download this
    use IPC::Open2;
    use Symbol;
    ...
       my $pid = open2( $rdr, $wtr, $cmdline );
    
       print "pid =  $pid\n";