Python中的Unix cat函数(cat *> merged.txt)? [英] Unix cat function (cat * > merged.txt) in Python?

问题描述

一旦建立目录后，是否可以使用Unix或类似方法在Unix中使用cat函数?我想将files_1-3合并到merged.txt

Is there a way to use the cat function from Unix in Python or something similar once a directory has been established ? I want to merge files_1-3 together into merged.txt

我通常只会在Unix中找到目录，然后运行

I would usually just find the directory in Unix and then run

cat * > merged.txt 

file_1.txt
file_2.txt
file_3.txt

merged.txt

推荐答案

我们知道我们将使用"Unix" cat命令(除非您正在寻找pythonic方式或对性能敏感的人)

As we know we are going to use "Unix" cat command (unless you are looking for a pythonic way or being performance concious)

您可以使用

import os
os.system("cd mydir;cat * > merged.txt")

或

由1_CR指出(谢谢)，并在此处进行了说明 Python:如何使用子流程重定向输出?

as pointed by 1_CR (Thanks) and explained here Python: How to Redirect Output with Subprocess?

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