测试网内主机存活状态

#！/bin/bash

LOOP=0

for N in {1..100}

  do

  host=192.168.0.$N

  ping -c 2 $host &> /dev/null

if [ $? = 0 ];then

 echo "$host is Up"

else

 echo "$host is Down"

#统计数量

 LOOP=`expr $LOOP + 1`

fi

done

echo "There is $LOOP Servers is Down!"