is this correct? 

   my $temppid = open (SYS, "/bin/tcsh $tempfilename | ") or die "$!";
   kill $temppid if (alarm (5)); 
   while (<SYS>)
   {
      print "[DEBUG] $_ <br>";
   }
   close SYS;

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In reply to Re^2: how to kill subprocess when it goes longer than 20 seconds? by echoangel911
in thread how to kill subprocess when it goes longer than 20 seconds? by echoangel911

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