real: 0m0.202s, user: 0m0.052s, sys: 0m0.055s
  PID TTY          TIME CMD
   30 ttyS0    00:00:00 bash
   36 ttyS0    00:00:00 bash
   37 ttyS0    00:00:00 sleep
   38 ttyS0    00:00:00 ps