Question

我想从字面上操作一条指挥线方案,并取得产出。

我如何获得禁忌所展示的信息,以便我能够用我的文字加以利用?

例如,我从指挥线上打电话foo file1,并打印出

Size: 3KB
Name: file1.txt
Other stuff: blah

我怎么能找到像filename = os.system( foo file1 )

Answer 1

Use the subprocess module:

import subprocess

command = [ ls ,  -l ]
p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.IGNORE)
text = p.stdout.read()
retcode = p.wait()

然后,你可以做你想要的改动<条码>。

The 2nd and 3rd parameters of subprocess.Popen are optional and can be removed.

Answer 2


利用。 标准图书馆单元。 查阅subprocess.check_output。


>>> subprocess.check_output("echo "foo"", shell=True)
 foo

(如果贵工具从未经委托的来源得到投入,则确保不使用<代码>shell=True的论点。)

Answer 3

通常,这门双管齐下:

#!/bin/bash
# vim:ts=4:sw=4

for arg; do
    size=$(du -sh "$arg" | awk  {print $1} )
    date=$(stat -c "%y" "$arg")
    cat<<EOF
Size: $size
Name: ${arg##*/}
Date: $date 
EOF

done

www.un.org/Depts/DGACM/index_spanish.htm Edit : 如何使用: 开放时间,然后抄送:

cd
wget http://pastie.org/pastes/2900209/download -O info-files.bash

In python2.4 :

import os
import sys

myvar = ("/bin/bash ~/info-files.bash  {} ").format(sys.argv[1])
myoutput = os.system(myvar) # myoutput variable contains the whole output from the shell
print myoutput

Answer 4

见。

from subprocess import run
o = run("python q2.py",capture_output=True,text=True)
print(o.stdout)

产出将编码

from subprocess import run
o = run("python q2.py",capture_output=True)
print(o.stdout)

2. 基准

subprocess.run(args, *, stdin=None, input=None, stdout=None, stderr=None, capture_output=False, shell=False, cwd=None, timeout=None, check=False, encoding=None, errors=None, text=None, env=None, universal_newlines=None, **other_popen_kwargs)

here output will not be encoded just a tip

Answer 5

这是一种纯粹的假冒解决办法:

import os
import stat
import time

# pick a file you have ...
file_name =  ll.py 
file_stats = os.stat(file_name)

# create a dictionary to hold file info
file_info = {
     fname : file_name,
     fsize : file_stats [stat.ST_SIZE],
     f_lm : time.strftime("%m/%d/%Y %I:%M:%S %p",time.localtime(file_stats[stat.ST_MTIME])),
}


print("""
Size: {} bytes
Name: {}
Time: {}
 """
).format(file_info[ fsize ], file_info[ fname ], file_info[ f_lm ])

Answer 6

在沙里, 您可在<条码>下游上通过带空间、分引和新线的便捷的联科行动指挥。模块这样,我们就可以把反应文本如上:

否则就会受到考验。 py:

#!/usr/bin/python
import subprocess

command = ( echo "this echo command  + 
  has subquotes, spaces,

" && echo "and newlines!" )

p = subprocess.Popen(command, universal_newlines=True, 
shell=True, stdout=subprocess.PIPE, 
stderr=subprocess.PIPE)
text = p.stdout.read()
retcode = p.wait()
print text;

之后,情况如下:
```
python test.py 
```

印刷:

this echo command has subquotes, spaces,


and newlines!

如果这艘船不为你工作,那可能会对金字版或操作系统造成麻烦。例如,Im在Utub12.10使用2.7.3。

友情链接