要求:写一个脚本判断某个网络内所有活动的IP地址.
实现脚本:
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#!/bin/bash#script_name: ipscan.shfile1=/root/scripts/uplist
file2=/root/scripts/downlist
if [ -e $file1 ]
then rm -rf $file1
fiif [ -e $file2 ]
then rm -rf $file2
fifor ((i=2;i<=254;i++))
do /bin/ping -c 1 192.168.3.$i >>/dev/null
if [ $? -eq 0 ]
then
echo "192.168.3.$i is alive" >> /root/scripts/uplist
else
echo "192.168.3.$i is not alive" >> /root/scripts/downlist
fi
done |
脚本执行效果:
[root@zabbix scripts]# sh ipscan.sh &
[1] 20131
[root@zabbix scripts]# ps -ef|grep ipscan |grep -v grep
root 20131 15528 0 17:41 pts/1 00:00:00 sh ipscan.sh
[root@zabbix scripts]# pwd
/root/scripts
[root@zabbix scripts]# ls
downlist ipscan.sh uplist
#查看IP统计
[root@zabbix scripts]# cat uplist |wc -l
50
[root@zabbix scripts]# cat downlist |wc -l
203
本文转自 marbury 51CTO博客，原文链接:http://blog.51cto.com/magic3/1438515