shell ip掃描

#shell scriptecho ping掃描echo 開始掃描...echo 擷取本機IP...myip=`ifconfig eth0 | awk '{print $2}'|egrep "addr:[0-9]" | awk 'BEGIN {FS=":"} {print $2}'`echo "本機IP：" $myipnet_ip=${myip%.*}.echo "網路掃描開始地址："$net_ip'1'echo "ping掃描" > ./up_host.txtfor scan_ip in $(seq 1 255)doping -c 3 $net_ip"$scan_ip" > /dev/null && echo "the host is up----" $net_ip"$scan_ip" && echo $net_ip"$scan_ip">> ./up_host.txt || echo "the host is down--" $net_ip"$scan_ip"done