when a set of processes of the same command are running. Sometime you need to kill a particular one because of wrong parametesr used. The first task is identify the process id (pid). I found this can be obtained by finding the origin directory using command
ps -aux > x
check file x to find origin folder of each pid (eg 32502) , then kill it
kill -9 32502
or
you may stop one suspected process and examine the output status to ascertain the right pid
