Hi i have this issue i am executing a shell command in my python script and the probleme i am getting two results instead of 1. The first is the id that i want to store the second is a 0 and i guess its the result code.
This is my code
import os
cmd = "/path/to/ctl so list | tail -1 | awk '{print $1}'"
event_id = os.system(cmd)
print(event_id)
and this is the result:
225
0
how can i delete that 0.
Thanks
Your guess is correct that 0 is the return code from your shell command. os.system(cmd) is executing your command and outputting the result, and then the return code is stored in event_id and printed.
You should use the subprocess module instead.
import subprocess
cmd = "/path/to/ctl so list | tail -1 | awk '{print $1}'"
event_id = subprocess.check_output(cmd, shell=True).rstrip()
print(event_id)
rstrip() to event_id in the print command will strip all trailing whitespace.
os.system()intoevent_id; that is0. The output of the command you ran showed up as well. Did you intend to capture the output of the command intoevent_id?