Google Calendar ical Auto Backup Script

If you are heavy Google Calendar user, must always export your events file to backup.
The below shell script is modified from Cpanel Auto Backup.

#!/bin/sh
myical="basic"
store_dir="/home/test/icalbackup" # The backup file directory path in local ex. /home/test/test1
file_keep_day=10 # the days that backup files will be kept (default: 10 day)
T=`date '+%m-%d-%Y'` # system date format MM-DD-YYYY
TS=`date '+%m-%d-%Y-%H%M%S'` # system date format MM-DD-YYYY-HhMinSS
#clean the files before $file_keep_day days
find $store_dir -name '*' -mtime +$file_keep_day | /usr/bin/xargs rm -f {}

#Google Calendar Backup -- add the time stamp in the tail of file
wget http://www.google.com/calendar/ical/yourname%40gmail.com/private-code/$myical.ics --no-check-certificate -O $store_dir/$myical-$TS.isc