Ping check for hosts

ping-ok.sh

#!/bin/sh
# Takes a list of space-separated hosts, FQDN or IP, as parameters.
# Will check each host with just one ping, Vassily, to see if they respond.
# Will print reachability for each host.
# No input validation.

for host in $@; do
	echo -n "$host: "
	if ping -c1 $host > /dev/null 2>&1; then
		echo reachable;
	else
		echo unreachable;
	fi
done