No crontab in AWS Amazon Linux 2023? Below shows how to install crontab on Amazon Linux 2023:

To install crontab on Amazon Linux 2023:

If you have just installed the new AWS Amazon Linux 2023, or have gotten a hold of the server, you may notice there is no crontab installed. Below are commands for you to install them.

1. Install the cronie (crontab) package:

• Open a terminal window and run the following command: sudo dnf install cronie

2. Enable and start the cronie service:

sudo systemctl enable cronie
sudo systemctl start cronie

3. Verify the installation:

• Check if crontab is installed: which crontab
  • This should output the path to the crontab command, typically /usr/bin/crontab.

4. Create or edit crontab entries:

• To edit the crontab for your user account: crontab -e
  • This will open the crontab file in a text editor.
• To edit the crontab for the root user: sudo crontab -e

5. Add cron jobs:

• Each line in the crontab file represents a job with the following format: * * * * * command-to-execute
  • The five asterisks represent:
    • Minute (0-59)
    • Hour (0-23)
    • Day of the month (1-31)
    • Month (1-12)
    • Day of the week (0-6, Sunday to Saturday)

Example:

• To run a script named my_script.sh every day at 10:30 AM: 30 10 * * * /path/to/my_script.sh

Additional notes:

• Use crontab -l to list existing cron jobs.
• Use crontab -r to remove all cron jobs for your user account.
• For more detailed information on crontab syntax, refer to the manual pages: man 5 crontab