批量ping主机脚本

#!/bin/bash
IP_LIST=$(cat /root/iplist)
for i in ${IP_LIST}
do
ping=`ping -c 3 -i 0.2 -w 1 $i > /dev/null`
if [ $? -eq 0 ];then
echo "host $i up"
else
echo "host $i down"
fi
done