shell腳本實(shí)現(xiàn)快速ping網(wǎng)段內(nèi)的IP地址

有時(shí)候想看看網(wǎng)段中有哪些IP被用了，可以用這個(gè)快速ping做一個(gè)初步的判斷。可以自己指定測(cè)試IP網(wǎng)段，并將測(cè)試結(jié)果整理排序到文件。

#!/bin/bash

#V1.0 2019-09-10

#Ping test shell script by tutor

clear

>ip-up.txt

>ip-down.txt

while true;

?do

? ? read -p "Please input the ip segment for ping test(like 192.168.100) : "? segment

? ? ?if [ -z $segment? ] ; then

? ? ? ?segment="192.168.100"

? ? ?fi

? ? echo -n "the ip segment is ${segment} , are you sure to continue [y/n] ? "

? ? read? action

? ? ?if [ -z $action? ] ; then

? ? ? ? ? break

? ? ?fi

? ? ?if [? "$action" =? "y"? ]; then

? ? ? ? ?break

? ? ?fi

done

echo "ping test is ready to run! "

for i in? {1..254}

?do

? ? ? {

? ? ? ? ping -c2 -W1 ${segment}.${i}? &>/dev/null

? ? ? ? if [ $? -eq 0 ]; then

? ? ? ? ? ?echo "${segment}.$i is up" &>/dev/null? >> ip-up.txt

? ? ? ? else

? ? ? ? ? ?echo "${segment}.$i is down" &>/dev/null >> ip-down.txt

? ? ? ? fi

? ? ?}&

done

wait

? ? ? ? ? ? sort -n -k 4 -t . ip-up.txt -o ip-up.txt

? ? ? ? ? ? cat ip-up.txt

? ? ? ? ? ? sort -n -k 4 -t . ip-down.txt -o ip-down.txt

? ? ? ? ? ? cat ip-down.txt

echo "ping test are finished!"