1) Open up first console
# ping google.com | grep avg
2) Open up second console
# ps aux | grep ping
alex 15785 0.0 0.0 10616 736 pts/3 S+ 21:33 0:00 ping -c 100 google.com alex 12458 0.0 0.0 10284 958 pts/4 S+ 21:33 0:00 grep –colour=auto ping
# watch -n 1 kill -3 15785