Very Computer

1. How to determine a process ID of a child process?

Hi Folks,

I have a perl script that runs an executable program(my_merger), there
is no error and I have what is expected. But, sometimes my_merger does
not exit smoothly or the process stays active in ps. my_merger is
eating up cpu resources that I have to kill manually. I cannot just
look at the program name because there are lots of instances of this
script.

To monitor, I am using top command and if there is a my_merger process
I kill it manually before crushing my system. Usually this my_merger
does not stay for long in ps. How can I determine the process ID for
me to make additional checking within the script to make sure that
my_merger was stopped gracefully. I cannot use '&' at the end of the
command because I need the return value.

#
sub my_proc {
   $retVal = `my_merger`;
   if ($?) {
   ...
   }

In advance, I am thankful to the one who can help me with this. It
will ease my burden to wake-up early morning just to monitor cpu
resources and killing the process.

Thanks,
IO

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