is a simple calendar and diary program.
Its optional argument specifies either a directory
on which has been mounted a
filesystem, or a file in which to store schedule entries
(which must already exist). In the latter case,
starts up an instance of
to serve the file. The default argument to
If two instances of calendar
are using the same datafile, care should be taken to run
programs, otherwise the data file will be corrupted.
for the data entries: