cron是一个Linux定时执行工具，可以在无需人工干预的情况下运行作业。在Ubuntu server 下，cron是被默认安装并启动的。

edit crontab

sudo crontab -e

input script you want to run

*/1 * * * * cd /root/AmuroP/ping_xxx/folder_name /usr/bin/python3 main.py  >>  crontab.log 2>&1

save

1. ctrl o
2. ctrl t
3. select the file
4. enter
5. ctrl x

check crontab

sudo crontab -l 

Then you can see log file in .log

Reference

1. https://medium.com/@gavinwiener/how-to-schedule-a-python-script-cron-job-dea6cbf69f4e
2. https://www.cnblogs.com/yiyezhouming/p/7799482.html
3. https://www.cnblogs.com/qq874455953/p/9589207.html