Detailed steps for Python script self-start and scheduled start under Linux

1. Python automatically runs at startup

Suppose the Python self-starting script is auto.py Then edit the following files with root privileges:

sudo vim /etc/rc.local

If you don't have rc.local please read this article

Edit the command to start the script above exit 0

/usr/bin/python3 /home/selfcs/auto.py > /home/selfcs/auto.log

Finally, restart Linux and the script will run automatically and print logs.

2. Start the Python script regularly

Edit the following file with root privileges

sudo vim /etc/crontab 

Add the following command at the end of the file

2 * * * * root /usr/bin/python3 /home/selfcs/auto.py > /home/selfcs/auto.log

The above code means that the script will be executed every two minutes and the log will be printed.

3. Crontab Writing Explanation

Basic format

* * * * * user command
Time-sharing, daily, monthly and weekly user commands

3.1 Example 1: Execute once every minute

* * * * * user command

2. Execute every 2 hours

* */2 * * * user command (/ indicates frequency)

3. Execute once every day at 8:30

30 8 * * * user command

4. Execute once at 30 and 50 minutes of every hour

30,50 * * * * user command (, indicates parallel)

5. Execute once at 8:30 on the 3rd to 6th of each month

30 8 3-6 * * user command (- indicates range)

6. Execute once every Monday at 8:30

30 8 * * 1 user command (the range of the weekday is 0-7, 0 and 7 represent Sunday)

Summarize

The above is the detailed steps for the self-start and scheduled startup of Python scripts under Linux introduced by the editor. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!
If you find this article helpful, please feel free to reprint it and please indicate the source. Thank you!