This is a quick command line program written by Brett Hutley brett@hutley.net which lists all the events in the specified calendar between two dates.
For example:
callistevents -c Pomodoros -s 2013-05-27 -e 2013-05-29
This lists all the events in the "Pomodoros" calendar between the 27th May 2013 and 29th May 2013.
It returns the events as "Event Title Start Date Time End Date Time". e.g.
10 minutes Pomodoro 'Create an index page for TweetGen' 28/05/2013 11:22 28/05/2013 11:32
10 minutes Pomodoro 'Review Book 3 Flashcards' 28/05/2013 11:42 28/05/2013 11:52
10 minutes Pomodoro 'Put website under source control' 28/05/2013 11:57 28/05/2013 12:07