use lines as argument to a command

[Shoryuken]

I'm new to Python, so my question may sounds naive. Here is it.

I have a text file like this:

www.a.com
www.b.com
www.c.com
....

I want to read one line from this file at a time, which I know how to
do. And use it as an argument to a command, for example, telnet www.a.com
and so on. However I have no idea how to do this task.

My purpose is to generate a brief report.

Thank you in advance.

[Amit Khemka]

On 10/15/07, Shoryuken <sa***************@gmail.comwrote:

I'm new to Python, so my question may sounds naive. Here is it.

I have a text file like this:

www.a.com
www.b.com
www.c.com
...

I want to read one line from this file at a time, which I know how to
do. And use it as an argument to a command, for example, telnet www.a.com
and so on. However I have no idea how to do this task.

I guess that you want to loop over a file and for each line in the
file you want to call some
external program with the line as the argument.

Have a look at subprocess module
http://docs.python.org/lib/module-subprocess.html

If there is some else that you meant, please specify .

Cheers,

--
--
Amit Khemka

[Shoryuken]

I guess that you want to loop over a file and for each line in the

file you want to call some
external program with the line as the argument.

Have a look at subprocess module
http://docs.python.org/lib/module-subprocess.html

If there is some else that you meant, please specify .

Cheers,

--
--
Amit Khemka

Thanks alot, its working now. But I have another question (sorry I'm
so noob), how can I redirect a command's output to a file (just like
executing a linux command "dmesg>>stat.txt")?

[Amit Khemka]

On 10/16/07, Shoryuken <sa***************@gmail.comwrote:

I guess that you want to loop over a file and for each line in the
file you want to call some
external program with the line as the argument.

Have a look at subprocess module
http://docs.python.org/lib/module-subprocess.html

If there is some else that you meant, please specify .

Thanks alot, its working now. But I have another question (sorry I'm
so noob), how can I redirect a command's output to a file (just like
executing a linux command "dmesg>>stat.txt")?

Since subprocess module allow you to call programs through (linux)
shell , you can use the same syntax in your command.

example:

>>from subprocess import call
call("echo foo >bar.txt", shell=True)

Cheers,

--
--
Amit Khemka