[英]Unable to ping multiple IP addresses from file
我有一个包含 IP 地址列表的文件ip.txt
文件。 我想 ping 文件中的每个地址并永远重复这个。 但是我的脚本只 ping 最后一行中包含的地址(见下面的输出)。 如何修改我的脚本来解决这个问题?
import cmd
import time
import sys
import os
my_file = open("ip.txt","rb")
for line in my_file:
l = [i.strip() for i in line.split(' ')]
IP = l[0]
def Main():
while True:
ping = os.system("ping", "-c", "1", "-n", "-W", "2", IP)
if ping:
print IP 'no connection'
CT =time.strftime("%H:%M:%S %d/%m/%y")
alert=' No Connection'
with open('logfile.txt','a+') as f:
f.write('\n'+CT)
f.write(alert)
time.sleep(4)
if __name__ == "__main__":
Main()
输出:
[root@localhost PythonScript]# python pingloop.py
PING 192.168.1.100 (192.168.1.100) 56(84) bytes of data.
64 bytes from 192.168.1.100: icmp_seq=1 ttl=128 time=0.655 ms
64 bytes from 192.168.1.100: icmp_seq=2 ttl=128 time=1.15 ms
64 bytes from 192.168.1.100: icmp_seq=3 ttl=128 time=1.14 ms
64 bytes from 192.168.1.100: icmp_seq=4 ttl=128 time=0.529 ms
64 bytes from 192.168.1.100: icmp_seq=5 ttl=128 time=0.538 ms
--- 192.168.1.100 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4006ms
rtt min/avg/max/mdev = 0.529/0.805/1.156/0.287 ms
PING 192.168.1.100 (192.168.1.100) 56(84) bytes of data.
64 bytes from 192.168.1.100: icmp_seq=1 ttl=128 time=0.476 ms
64 bytes from 192.168.1.100: icmp_seq=2 ttl=128 time=0.416 ms
64 bytes from 192.168.1.100: icmp_seq=3 ttl=128 time=0.471 ms
64 bytes from 192.168.1.100: icmp_seq=4 ttl=128 time=0.478 ms
64 bytes from 192.168.1.100: icmp_seq=5 ttl=128 time=0.574 ms
ip.txt
文件:
192.168.1.91
192.168.1.92
192.168.1.93
192.168.1.94
192.168.1.95
192.168.1.96
192.168.1.97
192.168.1.98
192.168.1.99
192.168.1.100
for line in my_file: l = [i.strip() for i in line.split(' ')] IP = l[0]
在这里,您在每次迭代中用新地址覆盖先前读取的 IP 地址。 所以最后,正如你所观察到的,你只有最后一个地址。
相反,构建一个地址列表:
addresses = []
for line in my_file:
IP = line.split()[0].strip()
addresses.append(IP)
或者干脆
addresses = [line.split()[0].strip() for line in my_file]
稍后,您必须在地址列表上添加一个额外的循环。 代替:
while True: ping = os.system("ping", "-c", "1", "-n", "-W", "2", IP) # etc.
做
while True:
for IP in addresses:
ping = os.system("ping", "-c", "1", "-n", "-W", "2", IP)
# etc.
将IP
定义为全局列表变量并将所有 ip 地址添加到此列表中,然后遍历列表:
IP = []
for line in my_file:
l = [i.strip() for i in line.split(' ')]
IP.append(l[0])
# instead while use for
for ip in IP:
ping = os.system("ping", "-c", "1", "-n", "-W", "2", ip)
...
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