关于python：如何使用Linux终端命令，如cd和ls？

How do i use Linux terminal commands like CD and LS?

本问题已经有最佳答案，请猛点这里访问。

如何将终端命令添加到Python脚本中？我有一个包含更多图片/视频的图片/视频/文件夹的大文件夹，我想把它们组织成一个HTML文件(firstpage.html)。

脚本首先列出目录中的所有文件：

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def listFiles():
command ="ls"
output = Popen(command, stdout=PIPE) #This is the only way i found to run LS in terminal and get the output
x = str(output.stdout.read())
x = x[2:-3]
x += ("")
x = re.sub(r"\
","", x)
y =""
finalLIST = list()
for o in x:
if o =="":
finalLIST.append(str(y))
y =""
else:
y += o
return finalLIST #returns a list with all files in the current directory

然后检查文件是图像还是视频，如果是视频，则添加到HTML文件：

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<video controls>
<source src="videoName.mp4" type="video/WebM/mp4">
<source src="videoName.ogg" type="video/ogg">
Video not suported!
</video>

如果它是一个图像，它会加上：

1	<img src="ImageName.jpg" alt="image"/>

代码是：

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def organize():
DIRECTORIES = listFiles()
IMAGE = [".png",".jpg"]
VIDEO = [".webm",".mp4"]
for x in DIRECTORIES:
if not re.search(".", x):
#This means that it is a directory
#I want to CD into this directory and run listFiles() and then organize() it. How i do it?
else:
for y in IMAGE:
ADDimg ="
<img src="" + x +"" alt="imagem"/>
"
if re.search(y, x):
with open(FirstPage.html) as f:
for line in f:
if line ="":
f.write(ADDimg)
break
f.write(ADDimg)
for y in VIDEO:
ADDvideo ="""
<video controls>
<source src="""" + x
"""" type="video/WebM/mp4">
<source src="video.ogg" type="video/ogg/WebM">
Video not suported!
</video>

"""
if re.search(y, x):
with open(FirstPage.html) as f:
for line in f:
if line ="":
f.write(ADDvideo)
break

这是firstpag.html：

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>The first page</title>
</head>
<body>



</body>
</html>

我希望这个脚本列出目录中的文件，将所有在那里的图像/视频添加到HTML文件中，然后将CD放到那里的文件夹中，递归地执行相同的操作。有什么建议吗？

谢谢！