A small set of tools to process ICS files from the command line (or Mutt), create ICS files, and submit them to Owncloud's calendar (or a WebDAV) - yrutschle/ics_tools

note: This didn't work on OpenBSD. I found a perl version in netbsd's ports collection and stole a copy for my own use.

Calcure is a modern TUI calendar and task manager with customizable interface. The program manages your events and tasks, displays birthdays from your abook, and can import events and tasks from calcurse and taskwarrior.