首先使用内置模块os.
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>>> import os
>>> code = os.system("pwd && sleep 2")
# /User/zhipeng
>>> print code
# 0
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问题是 os.system 只能获取到结束状态
使用内置模块 subprocess
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>>> import subprocess
# <subprocess.Popen object at 0x106498310>
# /home
>>> sub = subprocess.Popen("pwd && sleep 2", shell=True, stdout=subprcess.PIPE)
>>> sub.wait()
>>> print sub.stdout.read()
# /User/zhipeng
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subprocess.Popen还支持一些别的参数
bufsize,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
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使用第三方模块 sh
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# pip install sh
>>> from sh import ifconfig
>>> print ifconfig("eth0")
>>> from sh import bash
>>> bash("pwd")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
return RunningCommand(cmd, call_args, stdin, stdout, stderr)
File "/Library/Python/2.7/site-packages/sh.py", line 486, in __init__
self.wait()
File "/Library/Python/2.7/site-packages/sh.py", line 500, in wait
self.handle_command_exit_code(exit_code)
File "/Library/Python/2.7/site-packages/sh.py", line 516, in handle_command_exit_code
raise exc(self.ran, self.process.stdout, self.process.stderr)
sh.ErrorReturnCode_126:
RAN: '/bin/bash ls'
STDOUT:
STDERR:
/bin/ls: /bin/ls: cannot execute binary file
# 不能这么用
>>> from sh import ls
>>> ls()
# hello.txt 1.txt
# ls -al
>>> ls(a=True, l=True)
# ls(al=True) 是不可以的
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这操作太复杂了, 项目中使用也太糟心了, 也没有办法多个命令同时用.不过可以用别的方式代替
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# bash -c command 可以很好的解决这个问题
# bash -c "sleep 1 && pwd"
>>> result = bash(c="pwd", _timeout=1, _cwd="/home")
>>> print result
# -rw-r--r--@ 1 zhipeng staff 0 10 13 18:30 hello.txt
# -rw-r--r--@ 1 zhipeng staff 0 10 13 18:30 1.txt
>>> result = bash(c="pwd", _timeout=1, _cwd="/")
>>> print result
# /
>>> bash(c="pwd && sleep 2", _timeout=1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Python/2.7/site-packages/sh.py", line 1021, in __call__
return RunningCommand(cmd, call_args, stdin, stdout, stderr)
File "/Library/Python/2.7/site-packages/sh.py", line 486, in __init__
self.wait()
File "/Library/Python/2.7/site-packages/sh.py", line 498, in wait
raise TimeoutException(-exit_code)
sh.TimeoutException
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参数里面可以添加非命令参数. 需要以_开头, 例如上面的_timeout, _cwd. 详见sh.py 源码
还支持以下参数
internal_bufsize, err_bufsize, tee, done, in, decode_errors, tty_in,
out, cwd, timeout_signal, bg, timeout, with, ok_code, err, env, no_out,
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参考：
https://github.com/amoffat/sh/blob/master/sh.py
https://github.com/amoffat/sh
以上这篇Python 运行 shell 获取输出结果的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/u012731379/article/details/78856318