Checks timezonedb.com to see if timezone sql and csv db files have been updated today, and downloads them both if they have. Meant to be run daily with crontab.

tzdb.sh

#!/bin/bash

# add to crontab with something like '* 0 * * * /path/to/tzdb.sh &>/dev/null'
# change the -o option's parameter to save the files in a different dir on your machine

date=`date "+%Y-%m-%d"`

if [[ ! `curl -s https://timezonedb.com/date.txt` < "$date" ]]; then
  curl -s "https://timezonedb.com/files/timezonedb.{csv,sql}.zip" -o "tzdb-${date}-#1.zip"
fi