从 python3 运行 bash 命令

声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow 原文地址: http://stackoverflow.com/questions/37865608/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me): StackOverFlow

提示:将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间:2020-09-18 14:47:12  来源:igfitidea点击:

running bash command from python3

pythonbash

提问by BaRud

I am trying to remove some file (from my linux machine), except few:

我正在尝试删除一些文件(从我的 linux 机器中),除了少数几个:

touch INCAR KPOINTS foo bar
$ls
bar  foo  INCAR  KPOINTS
$python3 mini.py
Job Done
$ls
bar  foo  INCAR  KPOINTS 

The mini.pyis:

mini.py是:

#!/usr/bin/python3
import subprocess

subprocess.run(['rm', '-f', '!(INCAR|KPOINTS|PO*|*.sh)'])
print("Job Done")

As can be seen in the output of mini.py, its notgiving any error but neither its doing its job.

从 的输出中可以看出mini.py,它没有给出任何错误,但也没有完成它的工作。

What I am doing wrong here?

我在这里做错了什么?

回答by Fabricator

It doesn't work because !()is an extended matching pattern, and needs to be enabled explicitly:

它不起作用,因为!()它是扩展匹配模式,需要显式启用:

subprocess.run(['/bin/bash', '-O', 'extglob', '-c', 'rm -f !(INCAR|KPOINTS|PO*|*.sh)'])

Note this will remove the script itself...

请注意,这将删除脚本本身...

回答by Hans

you can also use

你也可以使用

import os
os.system('rm -f !(INCAR|KPOINTS|PO*|*.sh)')