How:

• Find the process named my_process:

  ps uw -C my_process

  [root@lovely-linux /root]# ps auwx | grep my_process
  yuni   27122  0.1  0.7  2032  936 pts/4    S    20:55   0:00 /bin/sh ./my_process
  yuni   27125  0.0  0.4  1552  600 pts/4    S    20:55   0:00 grep my_process

• Remove the process:

  kill -9 <PID of my_process>

• Check the presence of the process named my_process:

  ps uw -C my_process

  [root@lovely-linux /root]# ps auwx | grep my_process
  yuni   27127  0.0  0.3  1328  448 pts/4    R    20:55   0:00 grep my_process