脚本内容如下
#!/bin/bash
#date 0814
#mail gqoyvf@163.com
rm -f ip.txt
read -p 'input network number<xxx.xxx.xxx>:' network_number
for this_ip in {1..254}
do
ping $network_number.$this_ip -c 3 | grep -q "ttl=" || echo "$network_number.$this_ip" >> ip.txt
done
执行方法
[root@localhost ~]# ./get_IP.sh
input network number<xxx.xxx.xxx>:172.16.221
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