for use with /etc/crontab

Adding a system-wide crontab to update the ad source lists, flush the
log daily, and (eventually) record the stats for historical purposes.

advanced/pihole.cron

@@ -1 +1,26 @@
-@weekly sudo /usr/local/bin/gravity.sh
+# /etc/crontab: system-wide crontab
+# Unlike any other crontab you don't have to run the `crontab'
+# command to install the new version when you edit this file
+# and files in /etc/cron.d. These files also have username fields,
+# that none of the other crontabs do.
+
+SHELL=/bin/sh
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+# m h dom mon dow user  command
+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 )
+
+# Pi-hole: Update the ad sources once a week on Sunday at 01:59
+#          Download any updates from the ad lists
+59 1    * * 7   root    /usr/local/bin/gravity.sh
+
+# Pi-hole: Parse the log file before it is flushed and save the stats to a database
+#          This will be used for a historical view of your Pi-hole's performance
+#50 11  * * *   root    /usr/local/bin/dailyLog.sh
+
+# Pi-hole: Flush the log daily at 11:58 so it doesn't get out of control
+#          Stats will be viewable in the Web interface thanks to the cron job above
+58 11   * * *   root    /usr/local/bin/piholeLogFlush.sh