### How to use this script

First obtain an iCalendar (.ics) file, for example from the Stadt [Zürich Entsorgung & Recycling](https://www.stadt-zuerich.ch/ted/de/index/entsorgung_recycling/entsorgen/persoenlicher_entsorgungskalender.html).

1) Download the script file `add_alarms_to_ics.sh` from here
2) Open your Terminal / Command Line Interface app (on macOS: `Terminal.app` for example)
3) Use the following or a similar command to make the script executable:<br>`chmod +x /path/to/add_alarms_to_ics.sh`
4) Run the script on the desired iCalendar (.ics) file, with this command:<br><br>`/path/to/add_alarms_to_ics.sh "/path/to/icalendar.ics" 9 "backup"

#### Script options
* `"/path/to/icalendar.ics"` = you may also just drag'n'drop the file into your terminal/cli window
* `9` (or any other number) = set Reminder -X hours before the events start
* `"backup"` (Optional) = backup the original iCalendar .ics file before modifying it