Detailed steps of self-startup and timing startup of Python script under Linux

1. Python starts up and runs automatically

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

Sudo vim / etc/rc.local

If there is no rc.local, please read this article.

The command to edit the startup script on exit 0

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

Finally, restart Linux, and the script can run and print the log automatically.

Second, let the Python script start regularly

Edit the following files with root permissions

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 is executed every two minutes and the log is printed.

III. Crontab compiles explanations

Basic format

* user command time-sharing, day, month and week user command

3.1 examples 1. Execute once per minute

* user command

2. Execute every 2 hours

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

3. It is executed at 8:30 every day.

30 8 * user command

4. 30 minutes and 50 minutes per hour are executed respectively.

3050 * user command (, which means juxtaposition)

5. It is executed at 8:30 from the 3rd to the 6th of each month.

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

6. It is executed every Monday at 8:30

30 8 * 1 user command (the range of weeks is 0-7. 0 and 7 represent Sundays)

Summary

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