Install ruby-ice-cube by entering the following commands in the terminal:
sudo apt update sudo apt install ruby-ice-cube
Description:
Ruby Date Recurrence Library
ice_cube is a recurring date library for Ruby. It allows for quick, programatic expansion of recurring date rules. The API is modeled after iCalendar events, in a pleasant Ruby syntax. The power lies in the ability to specify multiple rules, and have ice_cube quickly figure out whether the schedule falls on a certain date (.occurs_on?), or what times it occurs at (.occurrences, .first, .all_occurrences).
Homepage: http://seejohnrun.github.com/ice_cube/
Version: 0.12.1-1
Section: universe/ruby