From LinuxSwords Wiki

Contents 1 using calendar 1.1 Calling the command 1.2 Default locations 1.3 Customize your own calendar file

using calendar

Calling the command

Usually calendar is installed by default. You can call it on the cmdline

calendar

It is usally in

/usr/bin/calendar

It prints out all calendar-entries for today and tomorrow. You can also ouput a specific date, consult the manual for this option.

Default locations

On a ubuntu system the file are located in

/usr/share/calendar

An ls of that directory on my linuxbox returned

calendar.all        calendar.birthday   calendar.debian      calendar.french   calendar.judaic      calendar.pagan        calendar.usholiday  hr_HR
calendar.argentina  calendar.christian  calendar.discordian  calendar.german   calendar.lotr        calendar.russian      calendar.world      ru_RU
calendar.australia  calendar.computer   calendar.eu          calendar.history  calendar.music       calendar.southafrica  de_DE
calendar.belgium    calendar.croatian   calendar.freebsd     calendar.holiday  calendar.newzealand  calendar.ubuntu       fr_FR

Customize your own calendar file

Create a directory

~/.calendar

and a file

~/.calendar/calendar

and insert some dates you want to remember:

LANG=utf-8
12/16   Geburtstag Andreina
 
#include <calendar.birthday>
#include <calendar.lotr>
#include <calendar.computer> 
#include <calendar.debian>

This file will be called by default and you can #include any other file you want to