In cmd, I can use find like this.
C:\>netstat -an | find "445"
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
C:\>
And os.system is OK.
>>import os
os.system('ne tstat -an | find "445"')
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
0
>>>
But I don't know how to use subprocess.Pope n to do this.
from subprocess import Popen, PIPE
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
It doesn't work.
Because subprocess.Pope n execute "find" like this.
C:\>find \"445\"
拒绝访问 - \
C:\>
It adds a '\' before each '"'.
How to remove the '\'?
Thank you. 8  4214  cl*****@gmail.c om wrote:
In cmd, I can use find like this.
C:\>netstat -an | find "445"
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
C:\>
And os.system is OK.
>>>import os
os.system('n etstat -an | find "445"')
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
0
>>>>
But I don't know how to use subprocess.Pope n to do this.
While there certainly are valid usecases for piping with subprocess in
Python - this ain't one I'd say. Just read the output of netstat yourself,
and filter for lines that contain the desired pattern.
Diez
On May 6, 11:19 am, clyf...@gmail.c om wrote:
In cmd, I can use find like this.
C:\>netstat -an | find "445"
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
C:\>
And os.system is OK.>>import os
>os.system('net stat -an | find "445"')
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
0
But I don't know how to use subprocess.Pope n to do this.
from subprocess import Popen, PIPE
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
I would say that, according to documentation, the following should
work:
print p2.communicate( )[0]
Philippe
On May 6, 5:19 pm, clyf...@gmail.c om wrote:
In cmd, I can use find like this.
C:\>netstat -an | find "445"
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
C:\>
And os.system is OK.>>import os
>os.system('net stat -an | find "445"')
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
0
But I don't know how to use subprocess.Pope n to do this.
from subprocess import Popen, PIPE
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
It doesn't work.
Because subprocess.Pope n execute "find" like this.
C:\>find \"445\"
拒绝访问 - \
C:\>
It adds a '\' before each '"'.
How to remove the '\'?
Thank you.
cannot help with the backslashes but try findstr instead of find
On May 6, 7:19*pm, clyf...@gmail.c om wrote:
In cmd, I can use find like this.
C:\>netstat -an | find "445"
* TCP * *0.0.0.0:445 * * * * * *0.0.0.0:0 * * * * * * *LISTENING
* UDP * *0.0.0.0:445 * * * * * **:*
C:\>
And os.system is OK.>>import os
>os.system('net stat -an | find "445"')
* TCP * *0.0.0.0:445 * * * * * *0.0.0.0:0 * * * * * * *LISTENING
* UDP * *0.0.0.0:445 * * * * * **:*
0
But I don't know how to use subprocess.Pope n to do this.
from subprocess import Popen, PIPE
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', *'"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
Get rid of the extra quotes. ie:
p2 = Popen(['find', '445'], stdin = p1.stdout, stdout = PIPE)
The quotes on the command line and on the os.system call are consumed
by the shell. The program doesn't see them.
On 5月7日, 上午9时45分, Justin Ezequiel <justin.mailing li...@gmail.com >
wrote:
On May 6, 5:19 pm, clyf...@gmail.c om wrote:
In cmd, I can use find like this.
C:\>netstat -an | find "445"
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
C:\>
And os.system is OK.>>import os
>>os.system('ne tstat -an | find "445"')
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
0
But I don't know how to use subprocess.Pope n to do this.
from subprocess import Popen, PIPE
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
It doesn't work.
Because subprocess.Pope n execute "find" like this.
C:\>find \"445\"
拒绝访问 - \
C:\>
It adds a '\' before each '"'.
How to remove the '\'?
Thank you.
cannot help with the backslashes but try findstr instead of find
Thank you.
findstr doesn't need quotes, so it works.
On 5月7日, 下午2时41分, alito <alito...@gmail .comwrote:
On May 6, 7:19 pm, clyf...@gmail.c om wrote:
In cmd, I can use find like this.
C:\>netstat -an | find "445"
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
C:\>
And os.system is OK.>>import os
>>os.system('ne tstat -an | find "445"')
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
UDP 0.0.0.0:445 *:*
0
But I don't know how to use subprocess.Pope n to do this.
from subprocess import Popen, PIPE
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
Get rid of the extra quotes. ie:
p2 = Popen(['find', '445'], stdin = p1.stdout, stdout = PIPE)
The quotes on the command line and on the os.system call are consumed
by the shell. The program doesn't see them.
You must be a linux user:)
I guess, in windows, the quotes are consumed by the c runtime library.
Mayby the "find" in windows doesn't use the argc/argv but the windows
API GetCommandLine( ).
I wrote a c program to prove it.
#include <windows.h>
#include <stdio.h>
int main(int argc, char **argv) {
int i;
printf("%s\n", GetCommandLine( ));
for (i = 0; i < argc; ++i)
printf("%d: %s\n", i, argv[i]);
return 0;
}
The output is:
C:\>test 1 2 "3"
test 1 2 "3"
0: test
1: 1
2: 2
3: 3
C:\>
Notice that, GetCommandLine( ) does not consume the quotes, but the
(char **argv) does.
En Wed, 07 May 2008 23:29:58 -0300, <cl*****@gmail. comescribi贸:
On 5鏈7鏃, 涓婂崍9鏃45鍒 , Justin Ezequiel <justin.mailing li...@gmail.com >
wrote:
>On May 6, 5:19 pm, clyf...@gmail.c om wrote:
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
It doesn't work.
Because subprocess.Pope n execute "find" like this.
C:\>find \"445\"
It adds a '\' before each '"'.
How to remove the '\'?
Thank you.
cannot help with the backslashes but try findstr instead of find
Thank you.
findstr doesn't need quotes, so it works.
Build the command line yourself -instead of using a list of arguments-. Popen doesn't play with the quotes in that case:
p1 = Popen(['netstat', '-an'], stdout = PIPE) # using list
p2 = Popen('find "445"', stdin = p1.stdout, stdout = PIPE) # using str
print p2.communicate( )[0]
--
Gabriel Genellina
On 5月8日, 下午5时39分, "Gabriel Genellina" <gagsl-....@yahoo.com. arwrote:
En Wed, 07 May 2008 23:29:58 -0300, <clyf...@gmail. comescribió:
On 5月7日, 上午9时45分, Justin Ezequiel <justin.mailing li...@gmail.com >
wrote:
On May 6, 5:19 pm, clyf...@gmail.c om wrote:
p1 = Popen(['netstat', '-an'], stdout = PIPE)
p2 = Popen(['find', '"445"'], stdin = p1.stdout, stdout = PIPE)
print p2.stdout.read( )
It doesn't work.
Because subprocess.Pope n execute "find" like this.
C:\>find \"445\"
It adds a '\' before each '"'.
How to remove the '\'?
Thank you.
cannot help with the backslashes but try findstr instead of find
Thank you.
findstr doesn't need quotes, so it works.
Build the command line yourself -instead of using a list of arguments-. Popen doesn't play with the quotes in that case:
p1 = Popen(['netstat', '-an'], stdout = PIPE) # using list
p2 = Popen('find "445"', stdin = p1.stdout, stdout = PIPE) # using str
print p2.communicate( )[0]
--
Gabriel Genellina
Thanks very much.
You solved my problem. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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