agrommek/alpine-cron repository overview

https://wiki.alpinelinux.org/wiki/Alpine_Linux:FAQ#My_cron_jobs_don.27t_run.3F

- Make sure the script is executable (chmod +x)!
- Make sure the first line of your script is:
  #!/bin/sh -OR- #!/bin/bash
- Do not put file extensions on your script names - this stops them from working.
  For example: myscript will run, but myscript.sh won't.

# run regular jobs from scripts
# min   hour    day     month   weekday command
*       *       *       *       *       /bin/run-parts /etc/periodic/1min
*/5     *       *       *       *       /bin/run-parts /etc/periodic/5min
*/10    *       *       *       *       /bin/run-parts /etc/periodic/10min
*/12    *       *       *       *       /bin/run-parts /etc/periodic/12min
*/15    *       *       *       *       /bin/run-parts /etc/periodic/15min
*/30    *       *       *       *       /bin/run-parts /etc/periodic/30min
0       *       *       *       *       /bin/run-parts /etc/periodic/hourly
1       */3     *       *       *       /bin/run-parts /etc/periodic/3hours
2       */6     *       *       *       /bin/run-parts /etc/periodic/6hours
3       */12    *       *       *       /bin/run-parts /etc/periodic/12hours
0       2       *       *       *       /bin/run-parts /etc/periodic/daily
0       3       *       *       6       /bin/run-parts /etc/periodic/weekly
0       5       1       *       *       /bin/run-parts /etc/periodic/monthly