（原创）自动扫描局域网并且发现指定端口开放的主机ip的shell脚本

jarod8016b

　　经过2天研究，学习shell和awk脚本，得到如下功能：
　　1。扫描局域网主机的端口开放情况
　　2。获取指定端口开发的主机ip
　　3。将获取的ip修改有关配置文件
　　代码如下，有疑问的可以找我探讨，一起学习！
　　#!/bin/bash

echo '
Start to delete the old configuration file......'

rm -rf scan_result.xml
rm -rf scan_result_ip.xml
rm -rf scan_result_ip.xml.bak

for ipv in {195..197}

do

echo '
Start to detect the status of port 9035 for host '$ipv'......'

nmap -v 10.0.2.$ipv  -p 9035  --append-output -oN scan_result.xml

done

#cho 'Start to find the ip of the host which's 9035 port is open......'

awk 'BEGIN{RS="Interesting ports on bogon"; FS="("; OFS=")"}{for(j=1;j<=NF;j++){if($j~/open/){print $0;break}}}' scan_result.xml > scan_result_ip.xml

echo '
The ip of the host whose 9035 port is open have been found......'

sleep 3

sed 's/(//g'  scan_result_ip.xml > scan_result_ip.xml.bak

sed 's/)://g'  scan_result_ip.xml.bak > scan_result_ip.xml

head -1 scan_result_ip.xml > scan_result_ip.xml.bak

var=`cat scan_result_ip.xml.bak|sed -e "s/ //g"`

sleep 3

echo '
Start to configure for the edge server......'