How to create a cron job using Bash automatically without the interactive editor?

Does crontab have an argument for creating cron jobs without using the editor (crontab -e). If so, What would be the code create a cronjob from a Bash script?

How do I run a cron job automatically?

Cron is a job scheduling utility present in Unix like systems. The crond daemon enables cron functionality and runs in background. The cron reads the crontab (cron tables) for running predefined scripts. By using a specific syntax, you can configure a cron job to schedule scripts or other commands to run automatically.

You can add to the crontab as follows:

#write out current crontab crontab -l > mycron #echo new cron into cron file echo "00 09 * * 1-5 echo hello" >> mycron #install new cron file crontab mycron rm mycron

Cron line explaination

* * * * * "command to be executed" - - - - - | | | | | | | | | ----- Day of week (0 - 7) (Sunday=0 or 7) | | | ------- Month (1 - 12) | | --------- Day of month (1 - 31) | ----------- Hour (0 - 23) ------------- Minute (0 - 59)

Source nixCraft.