OnWorks favicon

calendar - Online in the Cloud

Run calendar in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command calendar that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



calendar — reminder service


calendar [-ab] [-A num] [-B num] [-l num] [-w num] [-f calendarfile] [-t [[[cc]yy]mm]dd]


The calendar utility checks the current directory or the directory specified by the
CALENDAR_DIR environment variable for a file named calendar and displays lines that begin
with either today's date or tomorrow's. On Fridays, events on Friday through Monday are

The options are as follows:

-A num Print lines from today and next num days (forward, future). Defaults to one. (same
as -l)

-a Process the “calendar” files of all users and mail the results to them. This
requires superuser privileges.

-B num Print lines from today and previous num days (backward, past).

-b Enforce special date calculation mode for KOI8 calendars.

-l num Print lines from today and next num days (forward, future). Defaults to one. (same
as -A)

-w num Print lines from today and next num days, only if today is Friday (forward, future).
Defaults to two, which causes calendar to print entries through the weekend on

-f calendarfile
Use calendarfile as the default calendar file.

-t [[[cc]yy]mm]dd
Act like the specified value is “today” instead of using the current date. If yy is
specified, but cc is not, a value for yy between 69 and 99 results in a cc value of
19. Otherwise, a cc value of 20 is used.

To handle calendars in your national code table you can specify “LANG=<locale_name>” in the
calendar file as early as possible. To handle national Easter names in the calendars,
“Easter=<national_name>” (for Catholic Easter) or “Paskha=<national_name>” (for Orthodox
Easter) can be used.

A special locale name exists: ‘utf-8’. Specifying “LANG=utf-8” indicates that the dates
will be read using the C locale, and the descriptions will be encoded in UTF-8. This is
usually used for the distributed calendar files. The “CALENDAR” variable can be used to
specify the style. Only ‘Julian’ and ‘Gregorian’ styles are currently supported. Use
“CALENDAR=” to return to the default (Gregorian).

To enforce special date calculation mode for Cyrillic calendars you should specify
“LANG=<local_name>” and “BODUN=<bodun_prefix>” where <local_name> can be ru_RU.KOI8-R,
uk_UA.KOI8-U or by_BY.KOI8-B.

Note that the locale is reset to the user's default for each new file that is read. This is
so that locales from one file do not accidentally carry over into another file.

Other lines should begin with a month and day. They may be entered in almost any format,
either numeric or as character strings. If proper locale is set, national months and
weekdays names can be used. A single asterisk (`*') matches every month. A day without a
month matches that day of every week. A month without a day matches the first of that
month. Two numbers default to the month followed by the day. Lines with leading tabs
default to the last entered date, allowing multiple line specifications for a single date.
“Easter” (may be followed by a positive or negative integer) is Easter for this year.
“Paskha” (may be followed by a positive or negative integer) is Orthodox Easter for this
year. Weekdays may be followed by “-4” ... “+5” (aliases last, first, second, third,
fourth) for moving events like “the last Monday in April”.

By convention, dates followed by an asterisk (‘*’) are not fixed, i.e., change from year to

Day descriptions start after the first <tab> character in the line; if the line does not
contain a <tab> character, it isn't printed out. If the first character in the line is a
<tab> character, it is treated as the continuation of the previous description.

The calendar file is preprocessed by cpp(1), allowing the inclusion of shared files such as
company holidays or meetings. If the shared file is not referenced by a full pathname,
cpp(1) searches in the current (or home) directory first, and then in the directory
directory /etc/calendar, and finally in /usr/share/calendar. Empty lines and lines
protected by the C commenting syntax (/* ... */) are ignored.

Some possible calendar entries (a \t sequence denotes a <tab> character):


#include <calendar.usholiday>
#include <calendar.birthday>

6/15\tJune 15 (if ambiguous, will default to month/day).
Jun. 15\tJune 15.
15 June\tJune 15.
Thursday\tEvery Thursday.
June\tEvery June 1st.
15 *\t15th of every month.

May Sun+2\tsecond Sunday in May (Muttertag)
04/SunLast\tlast Sunday in April,
\tsummer time in Europe
Ostern-2\tGood Friday (2 days before Easter)
Paskha\tOrthodox Easter

Use calendar online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Fork of TeamWinRecoveryProject(TWRP)
    with many additional functions, redesign
    and more Features:Supports Treble and
    non-Treble ROMsUp-to-date Oreo kernel,
    Download OrangeFox
  • 2
    itop - ITSM  CMDB OpenSource
    itop - ITSM CMDB OpenSource
    IT Operations Portal: a complete open
    source, ITIL, web based service
    management tool including a fully
    customizable CMDB, a helpdesk system and
    a document man...
    Download itop - ITSM CMDB OpenSource
  • 3
    Clementine is a multi-platform music
    player and library organizer inspired by
    Amarok 1.4. It has a fast and
    easy-to-use interface, and allows you to
    search and ...
    Download Clementine
  • 4
    ATTENTION: Cumulative update 2.4.3 has
    been released!! The update works for any
    previous 2.x.x version. If upgrading
    from version v1.x.x, please download and
    Download XISMuS
  • 5
    Modular headtracking program that
    supports multiple face-trackers, filters
    and game-protocols. Among the trackers
    are the SM FaceAPI, AIC Inertial Head
    Tracker ...
    Download facetracknoir
  • 6
    PHP QR Code
    PHP QR Code
    PHP QR Code is open source (LGPL)
    library for generating QR Code,
    2-dimensional barcode. Based on
    libqrencode C library, provides API for
    creating QR Code barc...
    Download PHP QR Code
  • 7
    Cuckoo Sandbox
    Cuckoo Sandbox
    Cuckoo Sandbox uses components to
    monitor the behavior of malware in a
    Sandbox environment; isolated from the
    rest of the system. It offers automated
    analysis o...
    Download Cuckoo Sandbox
  • More »

Linux commands

  • 1
    rsbac-admin - Rule Set Based Access
    Control DESCRIPTION: rsbac-admin is a
    set of tool used to manage systems using
    a Rule Set Based Access Control (RSBAC)
    Run acl_gran
  • 2
    rsbac-admin - Rule Set Based Access
    Control DESCRIPTION: rsbac-admin is a
    set of tool used to manage systems using
    a Rule Set Based Access Control (RSBAC)
    Run acl_grant
  • 3
    cpupower idle-set - Utility to set cpu
    idle state specific kernel options
    SYNTAX: cpupower [ -c cpulist ]
    idle-info [options] DESCRIPTION: The
    cpupower idle-se...
    Run cpupower-idle-set
  • 4
    cpupower-info - Shows processor power
    related kernel or hardware
    configurations ...
    Run cpupower-info
  • 5
    g15daemon - provides access to extra
    keys and the LCD available on the
    logitech G15 keyboard. DESCRIPTION:
    G15Daemon allows users access to all
    extra keys by d...
    Run g15daemon
  • 6
    laditools - tools to control and
    monitor LADI (JACK and ladish) systems ...
    Run g15ladi
  • More »