OT: Unix - performance tuning (vmstat 5)

Hi Unix Gurus,

I submit a job to monitor the CPU utilization etc every 15 mins using the command vmstat 5.

How do I kill the submitted unix process of the batch job ?

I tried to kill the submitted process using a batch job using the following command :
var_pid=`echo $var_grep_vmstat | (read u v w x y z; echo ${v} )` kill $var_pid

This works if the output is
$ ps -ef | grep vmstat

   orahrms 11271 11263 0 17:30:00 ? 0:00 vmstat 5    orahrms 11612 11576 0 18:50:53 pts/11 0:00 grep vmstat

If the output is as below, the program will not work
$ ps -ef | grep vmstat

   orahrms 11612 11576 0 18:50:53 pts/11 0:00 grep vmstat    orahrms 11271 11263 0 17:30:00 ? 0:00 vmstat 5

Please help. Thanks in advance.

Regds,
New Bee

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