python - python subprocess.call参数问题

我正在Linux下编写一个简单的python脚本，以使用subprocess对我的子网中的主机执行一批并发的单个ping操作。

手动执行该命令:ping -c 1 192.168.68.1
剧本::

#!/usr/bin/python
from subprocess import call

path = "ping"
flags = "-c 1 "

for i in range(1,3):
    ip_addr = "192.168.68." + str(i)
    args = flags + ip_addr

    print "doing: {} {}".format(path, args)
    call([path, args])

注释掉 call 输出预期:

doing: ping -c 1 192.168.68.1
doing: ping -c 1 192.168.68.2

使用call()，脚本似乎调用ping但参数未知。输出如下:

doing: ping -c 1 192.168.68.1
Usage: ping [-aAbBdDfhLnOqrRUvV64] [-c count] [-i interval] [-I interface]
        [-m mark] [-M pmtudisc_option] [-l preload] [-p pattern] [-Q tos]
        [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp_option]
        [-w deadline] [-W timeout] [hop1 ...] destination
Usage: ping -6 [-aAbBdDfhLnOqrRUvV] [-c count] [-i interval] [-I interface]
         [-l preload] [-m mark] [-M pmtudisc_option]
         [-N nodeinfo_option] [-p pattern] [-Q tclass] [-s packetsize]
         [-S sndbuf] [-t ttl] [-T timestamp_option] [-w deadline]
         [-W timeout] destination
doing: ping -c 1 192.168.68.2
Usage: ping [-aAbBdDfhLnOqrRUvV64] [-c count] [-i interval] [-I interface]
        [-m mark] [-M pmtudisc_option] [-l preload] [-p pattern] [-Q tos]
        [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp_option]
        [-w deadline] [-W timeout] [hop1 ...] destination
Usage: ping -6 [-aAbBdDfhLnOqrRUvV] [-c count] [-i interval] [-I interface]
         [-l preload] [-m mark] [-M pmtudisc_option]
         [-N nodeinfo_option] [-p pattern] [-Q tclass] [-s packetsize]
         [-S sndbuf] [-t ttl] [-T timestamp_option] [-w deadline]
         [-W timeout] destination

似乎每次迭代都调用ping两次，而args与我期望的不同。我注意到ping抱怨-6参数，我将不胜感激，特别是在正确使用call()方面。

更新:
添加了我尝试模仿的bash脚本:

#!/bin/bash
for ip in $(seq 1 2); do
    ping -c 1 192.168.68.$ip &
done

最佳答案

传递给函数call的参数应分别是列表中的单个元素，例如:

call(['ping','-c','1','192.168.68.2'])

我无法在我的环境中复制“双重打印”。

关于python - python subprocess.call参数问题，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/37370951/