shell 内网主机存活探测器

 1 #!/bin/bash
 2 #
 3 #date:2014/12/18
 4 #blog:www.cnblogs.com/outline 
 5 #by :Joe
 6 
 7 if [ $# -lt 1 ] ; then
 8   echo " err, usage: ping.sh ARg "
 9   echo " eg : ping.sh  192.168.1"
10   exit 8
11 fi
12 
13 ips="$1"
14 stat=1
15 for ip in $(seq 1 254)
16 do
17   ping -c 1 ${ips}.${ip} >/dev/null && stat=1 || stat=0
18    if [ $stat -eq 1 ];then
19      echo " $ips.$ip is up"
20 
21    fi
22 done
23 
24 if [ $stat -eq 1 ]; then
25   echo " no host up"
26 fi