I found many jobs on ec2 bitnami drupal. they are below.

17 * * * root cd / && run-parts --report /etc/cron.hourly 25 6 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) 47 6 * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly ) 52 6 1 * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )

11 * * bitnami cd /opt/bitnami/stats && ./agent.bin --run -D

what are these jobs for?

thanks.