Re: os.system questions

On 3/31/07, Eric Price <soyouthinkimgonnalikethis@xxxxxxxxxxx> wrote:
Hi;
I have a couple bugs to work out in the below script; namely, I don't know
how to capture the result of an os.system command, nor am I convinced that
the call to os.system actually results in the execution of the command. Here
is the script:

#!/usr/local/bin/python
import re, os

def freshReboot():
up = os.system("uptime")
if re.search('day|hour', up):
pass
else:
first = up
tup = re.split('min', up)
first = tup[0]
n = len(first)
char = first[n-3:n-2]
if re.match(' ', char):
os.system("/usr/local/etc/rc.d/zz_mysql_starter_script.sh")


Here are my problems:

up = os.system("uptime")
How do I assign the output of "uptime" to the variable "up"?

os.system("/usr/local/etc/rc.d/zz_mysql_starter_script.sh")
When I substitute a test variable for "up", I don't get this script to
actually run. Everything else is tested and works. Why won't this script
run?

os.system doesn't allow you to get the output of the program, use
os.popen instead.
example:
import os
up = os.popen('uptime').readlines()

Cheers,

--
----
Amit Khemka -- onyomo.com
Home Page: www.cse.iitd.ernet.in/~csd00377
Endless the world's turn, endless the sun's Spinning, Endless the quest;
I turn again, back to my own beginning, And here, find rest.
.

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