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I want to run .py script:

python /home/project/manage.py slope_update

If I run it from shell it's OK, but in cron does not work:

*/10 * * * * root python /home/project/manage.py slope_update

What wrong?

I edit my /etc/crontab file from root


# m h dom mon dow user  command
17 *    * * *   root    cd / && run-parts --report /etc/cron.hourly
25 6    * * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --repo$
47 6    * * 7   root    test -x /usr/sbin/anacron || ( cd / && run-parts --repo$
52 6    1 * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --repo$

*/10 * * * * root /usr/bin/python /home/project/manage.py slope_update

With user quanta help:

*/10 * * * * root /usr/bin/python /home/project/manage.py slope_update >> /tmp/foo.log 2>&1

cat foo.log

Unknown command: 'slope_update' Type 'manage.py help' for usage.

Why slope_update try to use as command, but must have as parameter If this "python /home/project/manage.py slope_update" run in terminal it's work. Why?

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marked as duplicate by Iain, mdpc, Ladadadada, Rex, sysadmin1138 Jun 2 at 21:17

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

"does not work" is worthless for diagnosis. –  Ignacio Vazquez-Abrams Mar 10 '11 at 8:40
script not running but cron work) –  Konstantin Mar 10 '11 at 9:06
As you have used the /etc/crontab then the root username is required. –  Iain Mar 10 '11 at 9:13
I delete it just now, this is not problem –  Konstantin Mar 10 '11 at 9:15
do you have any ideas? –  Konstantin Mar 10 '11 at 16:34
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2 Answers

Redirect the error to file will help you debug easier:

*/10 * * * * root python /home/project/manage.py slope_update >> /tmp/foo.log 2>&1
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Unknown command: 'slope_update' Type 'manage.py help' for usage. :( –  Konstantin Mar 10 '11 at 9:17
Why slope_update try to use as command, but must have as parameter –  Konstantin Mar 10 '11 at 9:18
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Try putting the full path to python in your crontab e.g.

*/10 * * * * root /usr/bin/python /home/project/manage.py slope_update


The problem will be that the PATH in cron does not include the directory where python is installed (/usr/bin) so you need to supply the full path to python.

Edit Edit:

You are running this from your /etc/crontab ? If not then the root parameter is not required and may be causing problems.

Check email for mail from cron as it sends output from a job to you.

Check where your python lives, which python and adjust the path in the crontab accordingly.

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This is not file, it's parameter. –  Konstantin Mar 10 '11 at 8:29
If I run it from shell it's OK - problem isn't in path to files –  Konstantin Mar 10 '11 at 8:30
@Konstantin: even if this isn't the problem you're having, cron doesn't necessarily run with the same PATH that an interactive shell does; you should always specify the full path to be sure. –  nickgrim Mar 10 '11 at 8:37
doesn't work :( –  Konstantin Mar 10 '11 at 8:44
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