我想从 python 脚本中的 ls
或 df
等一些 shell 命令获取输出.我看到 commands.getoutput('ls')
已被弃用,但 subprocess.call('ls')
只会让我得到返回码.
I want to get the output from some shell commands like ls
or df
in a python script. I see that commands.getoutput('ls')
is deprecated but subprocess.call('ls')
will only get me the return code.
我希望有一些简单的解决方案.
I'll hope there is some simple solution.
使用subprocess.Popen:
import subprocess
process = subprocess.Popen(['ls', '-a'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = process.communicate()
print(out)
请注意,通信会阻塞,直到进程终止.如果您需要在输出终止之前输出,您可以使用 process.stdout.readline().有关详细信息,请参阅 文档.
Note that communicate blocks until the process terminates. You could use process.stdout.readline() if you need the output before it terminates. For more information see the documentation.
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