iCalendar utility

To get more information about the command line interface, use the -h option:

$ icalendar -h


To output a human readable summary of an event:

$ icalendar myfile.ics

The output will look something like this:

Organiser: Secretary <secretary@company.com>
  John Doe <j.doe@company.com>
  Randy <boss@company.com>
Summary: Yearly evaluation.
When: Tue 14 Mar 2017 11:00-12:00
Location: Randy's office
Comment: Reminder.

Your yearly evaluation is scheduled for next Tuesday. Please be on time.

To use this in terminal based e-mail clients like mutt, add a new mime type (as root):

# cat << EOF > /usr/lib/mime/packages/icalendar
text/calendar; icalendar '%s'; copiousoutput; description=iCalendar text; priority=2
# update-mime