Hi, I am launching a command like this: 

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

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Inside the tempfilename, the environment is setup and my tool is called. If someone else is using my tool due to license restrictions, the program will hang thus causing my cgi perl script to hang. Is there anyway to put a timer on this to exit and then continue on?

In reply to how to kill subprocess when it goes longer than 20 seconds? by echoangel911

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