In TYPO3 I have the Scheduler set up to run a scheduled task to process the index queue for the Solr extension. A cron task needed to be set up to run the Scheduler automatically at regular 5 minute intervals. I used Webmin's web interface to set up the cron job and here's the cron entry it saved in /var/spool/cron/crontabs/www-data/:

0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/bin/php /home/netdip/public_html/typo3/sysext/core/bin/typo3 scheduler:run #Run the TYPO3 scheduler for Netdip.com

You can see from the list of numbers that it will run it at 5 minute intervals. According to Crontab Guru all of those numbers and the following asterisks at the beginning of the line above can simply be replaced by the following notation to accomplish the same thing:

*/5 * * * *

So the entire line in the crontab could be replaced by this:

*/5 * * * * /usr/bin/php /home/netdip/public_html/typo3/sysext/core/bin/typo3 scheduler:run #Run the TYPO3 scheduler for Netdip.com

So that's what a cron would look like if you want to run a command every five minutes.