Python子进程Popen stdout仅用于变量 [英] Python subprocess Popen stdout to variable only

问题描述

我想做些简单的事，但我没听懂……我在Google上进行了很多搜索，但没有找到任何东西！

I want to do something easy, but I don't catch... I did many search on Google and I didn't find something!

我正在这样做:

from subprocess import Popen, PIPE

p1 = Popen(["fping", '-C10', '-B1', '-p500',
'-r1', '-s', '172.29.172.106'], stdout=PIPE)
output = p1.communicate()

因此，python执行我的命令，通讯等待返回代码，它工作正常.但是，我不知道为什么它显示输出...像这样:

So, python executes my command, communicate waits the return code, it works fine. But, I don't know why it displays the output... Like this :

172.29.172.106 : 13.50 18.56 13.22 13.42 13.39 187.62 13.34 13.51 13.36 26.35

       1 targets
       1 alive
       0 unreachable
       0 unknown addresses

       0 timeouts (waiting for response)
      10 ICMP Echos sent
      10 ICMP Echo Replies received
       0 other ICMP received

 13.2 ms (min round trip time)
 32.6 ms (avg round trip time)
 187 ms (max round trip time)
        4.530 sec (elapsed real time)

我只想执行一个命令，然后将输出重定向到变量，但是我不想显示输出，因为它会淹没我的crontab日志文件！

I just want to execute a command then redirect the output to a variable but I don't want to display the output because it floods my crontab log file!

所以问题是:如何使用popen(或其他函数)执行命令并将输出重定向到变量而不显示它?

So the question : how to use popen (or other function) to execute a command and redirect output to a variable without display it?

最诚挚的问候，

推荐答案

import subprocess 
p1 = Popen(["fping", '-C10', '-B1', '-p500','-r1', '-s', '172.29.172.106'],stdout=subprocess.PIPE,stderr=subprocess.PIPE)
output,error = p1.communicate()

尝试一下.

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