python中执行shell的方法

 

方法1：

import subprocess
  
x = subprocess.check_output("docker ps | grep wget | awk -F \'[ ]+\' \'{print $NF}\' ", shell=True)
#data = x.communicate()
print(x)
print(type(x))

print(x.decode())       # 默认 encoding="utf-8"

参考：

https://www.cnblogs.com/niuu/p/10106897.html

 

补充：window上使用subprocess自动播放音乐

import subprocess

proc = subprocess.Popen(["start", r"C:\Users\jinhong\Desktop\tiger.mp3"], shell=True)

# 会使用默认播放软件进行播放

 

 

 

方法2

import os

>>> x = os.popen("docker ps | grep wget | awk -F \'[ ]+\' \'{print $NF}\' ").read()
>>> x
\'wget1\n\'
>>> x.strip()
\'wget1\'