How to get the output from os.system() into a variable?

[alexLIGO]

Hi,

I would like to execute some command in python on the bash, e.g.

os.system('globus-job-run mike4.cct.lsu.edu/jobmanager-pbs -l
/bin/date')

and want the result of the output in a vector, so something like:

result=python_command(' command_on_the_bash ')

Is that possible? And how to do that?

Thanks
Alexander Dietz

[Björn Lindström]

"alexLIGO" <di***@rouge.phys.lsu.edu> writes:

I would like to execute some command in python on the bash, e.g.

os.system('globus-job-run mike4.cct.lsu.edu/jobmanager-pbs -l
/bin/date')

and want the result of the output in a vector, so something like:

result=python_command(' command_on_the_bash ')

Is that possible? And how to do that?

Check out the commands module.

http://docs.python.org/lib/module-commands.html

--
Björn Lindström <bk**@stp.lingfil.uu.se>
Student of computational linguistics, Uppsala University, Sweden

[Laszlo Zsolt Nagy]

alexLIGO wrote:

Hi,

I would like to execute some command in python on the bash, e.g.

os.system('globus-job-run mike4.cct.lsu.edu/jobmanager-pbs -l
/bin/date')

and want the result of the output in a vector, so something like:

result=python_command(' command_on_the_bash ')

Is that possible? And how to do that?

You can use one of these:

the subprocess module: http://docs.python.org/lib/module-subprocess.html
the popen2 module: http://docs.python.org/lib/module-popen2.html
popen and spawn variants from the os module:
http://docs.python.org/lib/os-process.html
pexpect (it is not in the standard library):
http://pexpect.sourceforge.net/

I believe that if you do not need the extended functionality of
"pexpect", then you should start with the "subprocess" module.
It is the newest.

Les

[Laszlo Zsolt Nagy]

result=python_command(' command_on_the_bash ')

Is that possible? And how to do that?

Check out the commands module.

http://docs.python.org/lib/module-commands.html

Hmm, I forgot this one. It is only working from UNIX, am I right?

Les

[alexLIGO]

Hi,

thank you very much for your tipps. I get it to work!

Alexander