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https://askubuntu.com/questions/857938/how-to-automatically-reboot-my-server-every-4-hours
The crontab Method. Open your Terminal or SSH into your server. Type sudo crontab -e and the press ENTER. Use the down arrow key to go to the bottom of the text. Type 0 */4 * * * sudo reboot. Press CTRL + X. Press Y. Press ENTER. If all went well, it should reboot every 4 hours, on the hour.
https://stackoverflow.com/questions/44943601/how-to-execute-my-command-every-4-hours-in-crontab-in-ubuntuforever-module-node
I am executing the below command first, crontab -u user_name -e # Edit this file to introduce tasks to be run by cron. # # Each task to run has to …
https://crontab.guru/every-4-hours
Cron job every 4 hours. “At minute 0 past every 4th hour.”. next at 2021-11-02 08:00:00. random. minute. hour. day. (month)
https://www.digitalocean.com/community/tutorials/how-to-use-cron-to-automate-tasks-ubuntu-1804
*/15 * * * * - Run the command every 15 minutes. 0 4 * * * - Run the command every day at 4:00 AM. 0 4 * * 2-4 - Run the command every Tuesday, Wednesday, and Thursday at 4:00 AM. 20,40 */8 * 7-12 * - Run the command on the 20th and 40th minute of every 8th hour every day of the last 6 …
https://serverfault.com/questions/39004/what-is-the-correct-syntax-to-run-cron-every-4-hours
This will run the job every 4 hours, on the hours of 00:00, 04:00, 08:00 12:00, 16:00, 20:00. This is just a little more verbose way of writing */4, but it should work the same. Share
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