Linode cron job is a Linux command that is used to schedule tasks to be run in the future.

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Let us take a look at the Linode cron job and its functions in detail.

Linode Cron job 

Cron is a well-known program on Linux and UNIX systems for scheduling activities to execute at specific periods or intervals. These tasks refer to Cron tasks or Cron jobs. Cron can schedule and automate updates, create reports and check for available disk space, and also inform the user if the space falls below a given threshold.

Add a Cron Job

To Add a Cron job follow the steps given below:

1. Firstly, in a text editor (vi in most distributions), open a crontab for crontab —enable Note To change the text editor, add the environment variable to the /.bashrc file, replacing vim with nano or any terminal-based editor. EDITOR=vim export
2. Secondly, save and leave after adding the Cron task. The crontab saves crontab particular to the person who made it in /var/spool/cron/crontabs. To remove a Cron job from it later, delete the line from the user’s crontab file.

Time intervels in Cron Job

In the crontab line of a Cron job, numbers represent time intervals and operators entering in line of each asterisk. The asterisks symbolize, from left to right:

1. Minutes- integer ranging from 0 to 59.
2. Hours- integers ranging from 0 to 23.
3. Month days-  integers ranging from 1 to 31.
4. Months-  numerals ranging from 1 to 12.
5. Weekdays- integers ranging from 0 to 7, with Sunday represented as either/both 0 and 7

Example for crontab Entries

Below given are some examples of Cron job entires that can help:

1. Run the cal-update-daily binary every day at 12:01am (1 0). 1 0 \* \* \* /opt/bin/cal-update-daily
2. On the first and fifteenth of each month, run the /opt/bin/payroll-bi-monthly program at 4:45pm (45 16). (1,15). 45 16 1,15 /opt/bin/payroll-bi-monthly * *
3. Every hour, launch the script compress-static-files.. This is done in two ways. Only one should be entered into the user crontab file. Option A 0 \* \* \* \* /opt/bin/compress-static-files Option B @hourly /opt/bin/compress-static-file.

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Conclusion

To conclude, the Linode cron job is an effective Linux tool for scheduling and managing tasks. And it is easy to set up and manage the Linode cron job.