There are scripts in /usr/local/sbin to update the feeds. You can also create a cronjob that runs once a day to update your feeds.
I’ve created a script /usr/local/sbin/update-greenbone-feeds
#!/bin/bash
/usr/local/sbin/greenbone-nvt-sync
/usr/local/sbin/greenbone-certdata-sync
/usr/local/sbin/greenbone-scapdata-sync
and added that via sudo crontab -e
1 1 * * * /usr/local/sbin/update-greenbone-feeds 1>/dev/null 2>/dev/null
so it runs every night at 1:01 am
Best regards,
Chris