echo 192.168.1.1 192.168.1.2 192.168.1.3|xargs -n1 ping -w 1
echo 192.168.1.1 192.168.1.2 192.168.1.3|xargs -n1 ping -w 1
or with grep, see only non ping nodes echo 192.168.1.1 192.168.1.2 192.168.1.3|xargs -n1 ping -w 1|grep -b1 100
echo 192.168.1.1 192.168.1.2 192.168.1.3|xargs -n1 ping -w 1|grep -b1 100