#!/bin/bash

 #

 #date://

 #blog:www.cnblogs.com/outline

 #by :Joe

 if [ $# -lt  ] ; then

   echo " err, usage: ping.sh ARg "

   echo " eg : ping.sh  192.168.1"

   exit

 fi

 ips="$1"

 stat=

 for ip in $(seq  )

 do

   ping -c  ${ips}.${ip} >/dev/null && stat= || stat=

    if [ $stat -eq  ];then

      echo " $ips.$ip is up"

    fi

 done

 if [ $stat -eq  ]; then

   echo " no host up"

 fi