自动扫描C段段内主机的shell

确认你的系统安装有nmap
#apt-get install nmap

脚本如下：

#!/bin/bash

#####################
#* scan.sh         *#
#* blueantelope    *#
#* 2007-09-22      *#
#* home            *#
#####################

ip_count=1

printf "Begin Scan\n"

echo "" > /tmp/scan.log

while [ $ip_count -lt 255 ]
do
        ip=$1.$ip_count
        echo "" >> /tmp/scan.log
        echo "" >> /tmp/scan.log

        echo "" >> /tmp/scan.log
        echo "" >> /tmp/scan.log
        echo "=========Scan $ip=============" >> /tmp/scan.log
        nmap -sS $ip >> /tmp/scan.log
        echo "=========End $ip==============" >> /tmp/scan.log
        ip_count=`expr $ip_count + 1`
done

printf "Now End Scan\n"