FileNotFoundError：[Errno 2]没有这样的文件或目录：'ifconfig'

Question

我被教导如何通过两种方法更改 mac 地址，subprocess.call第一种方法成功，但第二种方法给我错误，我无法理解它，这是我的代码：

#! /usr/bin/python3.5
import subprocess
interface = input("Enter Interface of Your Choice: ")
mac_chg = input("Enter New Mac Address: ")
print("[+]Changing Mac ADDRESS of " + interface + " to " + mac_chg)
subprocess.call(["ifconfig", interface, "down"])
subprocess.call(["ifconfig", interface, "hw", "ether", mac_chg])
subprocess.call(["ifconfig", interface, "up"])

这是错误：

Traceback (most recent call last):
  File "/home/kali/PycharmProjects/hello/main.py", line 7, in <module>
    subprocess.call(["ifconfig", interface, "down"])
  File "/usr/lib/python3.8/subprocess.py", line 340, in call
    with Popen(*popenargs, **kwargs) as p:
  File "/usr/lib/python3.8/subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.8/subprocess.py", line 1702, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'ifconfig'

Process finished with exit code 1

由于此错误，我无法取得进展。

Answer 1

在 Linux 中，默认情况下subprocess.call不使用 shell 来运行我们的命令，因此您不能使用 shell 命令，例如cd.

subprocess.call所以只要给ie多加一个参数shell=True然后尝试执行就可以了。

例如：

subprocess.call(["ifconfig", interface, "down"], shell=True)