Running a Python Script Using Cron

Execute Python script via crontab

Just use crontab -e and follow the tutorial here.

Look at point 3 for a guide on how to specify the frequency.

Based on your requirement, it should effectively be:

*/10 * * * * /usr/bin/python script.py

How to run a python script with cronjob in Ubuntu / Apache

Change this line

file1 = open("home/username/project/cron_test.txt","a")

to

file1 = open("/home/username/project/cron_test.txt","a")

schedule python script with crontab

First, source activate syntax was deprecated years ago (how old is your Conda instance?) - you should be using conda activate. Second, Conda shell commands are loaded into the shell as part of sourcing .bashrc or .bash_profile. So at the very least, you need to include the -l in the shebang and

#!/bin/bash -l
conda activate py36
python /mnt/data/sda/user_storage/stocks_etl.py

You may need to do something extra to ensure the .bashrc it sources is correct (e.g., what user does it run as?).

Note that Conda also has the conda run command for executing commands inside envs, which I think should be preferred:

#!/bin/bash -l
conda run -n py36 python /mnt/data/sda/user_storage/stocks_etl.py

The latter form should also work without the Conda initialization, but providing the full path to the conda entry point:

#!/bin/bash

# change to match where your `conda` location
/home/user/anaconda3/condabin/conda run -n py36 python /mnt/data/sda/user_storage/stocks_etl.py

Running python script using a cron job

I think would be better if you gave open() a full path for that file.
I would specify the full path to python as well.

1 */12 * * * /usr/bin/python3 /root/telesend.py >> /root/cron.log 2>&1

this is my example which is working perfectly well
take a look at link for correct schedule expressions

Not able to run a python script after every 5mins using cron

I assume you are trying to automatically run below script every 5 minutes:

/home/anikde/Documents/pythonProjects/python_scripts/test/write.py

First, determine the location of your Python executable, using which python command. In below examples I assume the returned path to be /usr/bin/python.

1. If editing your own crontab (crontab -e) try this command:

*/5 * * * * /usr/bin/python /home/anikde/Documents/pythonProjects/python_scripts/test/write.py

If no user is specified, the job is run as the user that owns the crontab file, using his environment. But you can also try adding the username

*/5 * * * * anikde /usr/bin/python /home/anikde/Documents/pythonProjects/python_scripts/test/write.py

2. If editing root crontab (sudo crontab -e)

*/5 * * * * anikde /usr/bin/python /home/anikde/Documents/pythonProjects/python_scripts/test/write.py

Running a python script in every 30 minutes using Crontab?

Suppose I have a python file test.py with the contents

print "hello"

To schedule it to run every 30 minutes, use

crontab -e

Then edit to add

*/30 * * * * python /path-to-file/test.py

To check if cron ran succesfully

grep CRON /var/log/syslog

Here, you will see in logs, lines like

May 31 14:25:01 shivam-PC CRON[17805]: (shivam) CMD (python /home/shivam/test.py)

Note: print statement might not show in logs, so use

*/30 * * * * python /path-to-file/test.py >> /path-to-file/out.txt

and then check out.txt for print logs.

An alternate solution would be to use Celery.

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