Crontab and script

Question

I have debian linux. I've created from user crontab -e this text:

0 * * * * python /home/user/CronLogic.py
15 * * * * python /home/user/CronLogic.py
30 * * * * python /home/user/CronLogic.py
45 * * * * python /home/user/CronLogic.py
*/1 * * * * date > /tmp/TEST

Last string runs fine but running python script fails with:

/bin/sh: 1: /usr/bin/rcssserver: not found

The code is:

#!/usr/bin/python
cmd ='/usr/bin/rcssserver'
err = open('CronLogicERRORS', 'a')
server = subprocess.Popen(cmdRes, shell=True, stderr=err)

And the error appears in CronLogicERRORS file. What could be wrong here? Without cron script runs fine.

• Douglas Leeder: Python variable is cmd but cmdRes passed to subprocess. Might be worth avoiding shell in subprocess?
• Lev Levitsky: Well, judging by the given example, Python is not really needed at all. Maybe the OP doesn't show the whole Python script.

Answer 1

cmd ='/usr/bin/rcssserver'
# ^^^ Too many s's

Now, about your cron usage:

Instead of having the same line 4 times, make it one line of 0,15,30,45, or even better */15. And your */1 is redundant, just plain * is better.

• Max Frai: Thanks for the tip. I wrote that this script runs ok withour cron ;) Name of binary is accurate.