subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"])
RIght now I have a script that I run. When I run it and it hits this line, it starts printing stuff because run.sh has prints in it.
现在我有一个运行的脚本。当我运行它，它碰到这条线，它开始打印东西，因为运行。sh里面有指纹。
How do I pipe this to a text file also? (And also print, if possible)
如何将其传输到文本文件?(如果可能的话，也可以打印)
2 个解决方案
#1
98
If you want to write the output to a file you can use the stdout-argument of subprocess.call.
如果要将输出写入文件，可以使用subprocess.call的stdout参数。
It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The third and fourth are what you want, to have the output written to a file.
它需要没有,子流程。管道、文件对象或文件描述符。第一个是默认值，stdout是从父(脚本)继承的。第二个命令允许您从一个命令/进程传输到另一个命令/进程。第三和第四是您想要的，将输出写入文件。
You need to open a file with something like open and pass the object or file descriptor integer to call:
您需要打开一个文件，并将对象或文件描述符整数传递给调用:
f = open("blah.txt", "w")
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"], stdout=f)
I'm guessing any valid file-like object would work, like a socket (gasp :)), but I've never tried.
我猜想任何有效的类文件对象都可以工作，比如套接字(gasp:)，但我从未尝试过。
As marcog mentions in the comments you might want to redirect stderr as well, you can redirect this to the same location as stdout with stderr=subprocess.STDOUT. Any of the above mentioned values works as well, you can redirect to different places.
正如marcog在注释中所提到的，您可能想要重定向stderr，您可以将其重定向到stdout和stderr=subprocess.STDOUT的相同位置。上面提到的任何值都可以工作，您可以重定向到不同的位置。
#2
16
The options for popen can be used in call
popen的选项可以在调用中使用
args,
bufsize=0,
executable=None,
stdin=None,
stdout=None,
stderr=None,
preexec_fn=None,
close_fds=False,
shell=False,
cwd=None,
env=None,
universal_newlines=False,
startupinfo=None,
creationflags=0
So...
所以…
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"], stdout=myoutput)
Then you can do what you want with myoutput (which would need to be a file btw).
然后你可以用myoutput做你想做的事情(顺便说一句，它需要是一个文件)。
Also, you can do something closer to a piped output like this.
同样，您可以做一些类似于管道输出的事情。
dmesg | grep hda
would be:
是:
p1 = Popen(["dmesg"], stdout=PIPE)
p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
output = p2.communicate()[0]
There's plenty of lovely, useful info on the python manual page.
在python手册页面上有许多可爱的、有用的信息。
#1
98
If you want to write the output to a file you can use the stdout-argument of subprocess.call.
如果要将输出写入文件，可以使用subprocess.call的stdout参数。
It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The third and fourth are what you want, to have the output written to a file.
它需要没有,子流程。管道、文件对象或文件描述符。第一个是默认值，stdout是从父(脚本)继承的。第二个命令允许您从一个命令/进程传输到另一个命令/进程。第三和第四是您想要的，将输出写入文件。
You need to open a file with something like open and pass the object or file descriptor integer to call:
您需要打开一个文件，并将对象或文件描述符整数传递给调用:
f = open("blah.txt", "w")
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"], stdout=f)
I'm guessing any valid file-like object would work, like a socket (gasp :)), but I've never tried.
我猜想任何有效的类文件对象都可以工作，比如套接字(gasp:)，但我从未尝试过。
As marcog mentions in the comments you might want to redirect stderr as well, you can redirect this to the same location as stdout with stderr=subprocess.STDOUT. Any of the above mentioned values works as well, you can redirect to different places.
正如marcog在注释中所提到的，您可能想要重定向stderr，您可以将其重定向到stdout和stderr=subprocess.STDOUT的相同位置。上面提到的任何值都可以工作，您可以重定向到不同的位置。
#2
16
The options for popen can be used in call
popen的选项可以在调用中使用
args,
bufsize=0,
executable=None,
stdin=None,
stdout=None,
stderr=None,
preexec_fn=None,
close_fds=False,
shell=False,
cwd=None,
env=None,
universal_newlines=False,
startupinfo=None,
creationflags=0
So...
所以…
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"], stdout=myoutput)
Then you can do what you want with myoutput (which would need to be a file btw).
然后你可以用myoutput做你想做的事情(顺便说一句，它需要是一个文件)。
Also, you can do something closer to a piped output like this.
同样，您可以做一些类似于管道输出的事情。
dmesg | grep hda
would be:
是:
p1 = Popen(["dmesg"], stdout=PIPE)
p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
output = p2.communicate()[0]
There's plenty of lovely, useful info on the python manual page.
在python手册页面上有许多可爱的、有用的信息。