Description:

plan is a schedule planner based on X/Motif. It displays a month calendar
similar to xcal, but every day box is large enough to show appointments in
small print. By pressing on a day box, the appointments for that day can be
listed and edited. Appointments are entered with the following
information (everything except the date is optional):

* the date, time, and length (time and days) of the appointment,
* an optional text message to be printed,
* an optional script to be executed,
* early-warn and late-warn triggers that precede the alarm time
* repetitions: [n-th] weekdays, days-of-the-month, every n days, yearly
* optional fast command-line appointment entry
* flexible ways to specify holidays and vacations
* extensive context help
* multiuser capability using an IP server program (with access lists),
* grouping of appointments into files, per-user, private, and others