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https://crontab.tech/every-4-hours#:~:text=How%20to%20run%20a%20script%20in%20crontab%20every,%2Fpath%2Fto%2Fyour%2Fscript%20Step%203%3A%20Save%20the%20file.%20That%27s%20it%21
https://crontab.tech/every-4-hours
Cronjob let's you run a script to do a repetitive job in an efficent way, here's how you can schedule a cronjob for every 4 hours: Step 1: Edit your cronjob file by running "crontab -e" command. Step 2) Add the following line for every 4 hours interval: 0 */4 * * * /path/to/your/script. Step 3: Save the file.
https://crontab.guru/every-4-hours
sunday (non-standard) Cron job every 4 hours is a commonly used cron schedule.
https://cronhelper.com/schedule/11
Crontab run every 4 hours. Cron expression every 4 hours
https://serverfault.com/questions/39004/what-is-the-correct-syntax-to-run-cron-every-4-hours
0 0,4,8,12,16,20 * * * /cmd.sh That's probably how I would do it. 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.
https://crontab.tech/every-hour
Cronjob let's you run a script to do a repetitive job in an efficent way, here's how you can schedule a cronjob for every hour: Step 1: Edit your cronjob file by running "crontab -e" command. Step 2) Add the following line for every hour interval: 0 * * * * /path/to/your/script. Step 3: Save the file. That's it!
https://www.unix.com/unix-for-dummies-questions-and-answers/160529-execute-crontab-every-4-hours-begin-current-time.html
Normally if I set the crontab entry like this, Code: 00 */4 30 05 * root date >>/tmp/cronout. The above will execute the date command for every 4 hours like 4,8,12,16,20,24 on 30th May, for example I start the crontab at 02:00:00. But if I start the crontab at 09:15:00, it should execute the crontab command after 4 hours like 13:15:00, then 17:15:00 like this.
https://www.digitalocean.com/community/questions/ubuntu-cron-job-reboot-every-4-hours
You can set your server to reboot every 4 hours by setting the following crontab. First you may want to select your preferred editor otherwise vi maybe a tad too complex for someone just starting. To that first: sudo update-alternatives --config editor. Then edit your crontab: sudo crontab -e.
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