Re: [Tutor] system()? popen2()? How to execute a command save its output?

[Chris Fuller]

You might also consider pexpect.
http://pexpect.sourceforge.net/

It's designed for interactive console applications like ftp.

For popen() style access, the recommended approach is the subprocess module.  
You should be able to find an example in the docs to fit your application.
http://docs.python.org/library/subprocess.html

Cheers


On Wednesday 29 September 2010, James Hartley wrote:
 I'm needing to transfer the following shell construct to Python, plus save
 the output of execution:
 
 FTP_SITE='ftp.somesite.com'
 ftp -a  $FTP_SITE EOF
 binary
 prompt off
 cd /some_dir
 dir
 bye
 EOF
 
 Here, the FTP client accepts commands from STDIN, so all commands are saved
 in a temporary file which is redirected to the client application.
 
 I also need to save whatever output is generated.  How can this be done in
 Python?
 
 Thanks.
 
 Jim

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Re: [Tutor] system()? popen2()? How to execute a command save its output?

[r...@schoenian-online.de]

Hi,
 
I've once written a script to sync my website with a local directory. I guess
that you will find anything you need in the FTPHelper class. Have a look at:
http://home.arcor.de/ralf_schoenian/websync/index.html At the bottom of the page
you can view and download the script.
Any questions are welcome.
Ralf



James Hartley jjhart...@gmail.com hat am 30. September 2010 um 06:29
geschrieben:


 I'm needing to transfer the following shell construct to Python, plus save the
 output of execution:
 
 FTP_SITE='ftp.somesite.com [http://ftp.somesite.com] '
 ftp -a  $FTP_SITE EOF
 binary
 prompt off
 cd /some_dir
 dir
 bye
 EOF
 
 Here, the FTP client accepts commands from STDIN, so all commands are saved in
 a temporary file which is redirected to the client application.
 
 I also need to save whatever output is generated.  How can this be done in
 Python?
 
 Thanks.
 
 Jim
 

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[Tutor] system()? popen2()? How to execute a command save its output?

[James Hartley]

I'm needing to transfer the following shell construct to Python, plus save
the output of execution:

FTP_SITE='ftp.somesite.com'
ftp -a  $FTP_SITE EOF
binary
prompt off
cd /some_dir
dir
bye
EOF

Here, the FTP client accepts commands from STDIN, so all commands are saved
in a temporary file which is redirected to the client application.

I also need to save whatever output is generated.  How can this be done in
Python?

Thanks.

Jim
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Re: [Tutor] system()? popen2()? How to execute a command save its output?

[vijay]

command_name = 'ps -ax|grep  sometext /tmp/output.txt'f = os.popen('%s' 
%command_name)
fp = open('/tmp/output.txt')
print fp.readlines()

With Regards
Vijay


--- On Thu, 30/9/10, James Hartley jjhart...@gmail.com wrote:

From: James Hartley jjhart...@gmail.com
Subject: [Tutor] system()? popen2()? How to execute a command  save its output?
To: tutor@python.org
Date: Thursday, 30 September, 2010, 9:59 AM

I'm needing to transfer the following shell construct to Python, plus save the 
output of execution:

FTP_SITE='ftp.somesite.com'
ftp -a  $FTP_SITE EOF
binary

prompt off
cd /some_dir
dir
bye
EOF

Here, the FTP client accepts commands from STDIN, so all commands are saved in 
a temporary file which is redirected to the client application.

I also need to save whatever output is generated.  How can this be done in 
Python?


Thanks.

Jim


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