OnWorks favicon

gcal - Online in the Cloud

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

This is the command gcal 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



Gcal - a program for calculating and printing calendars.


gcal [[Option...] [%Date] [@File...]] [Command]


Gcal is a program similar the standard calendar programs BSD-`cal' and `calendar'.

Gcal displays hybrid and proleptic Julian and Gregorian calendar sheets, respectively, for
one month, three months or a whole year. It also displays eternal holiday lists for many
countries around the globe, and features a very powerful creation of fixed date lists that
can be used for reminding purposes. Gcal can calculate various astronomical data and
times of the Sun and the Moon for at pleasure any location, precisely enough for most
civil purposes. Gcal supports some other calendar systems, for example the Chinese and
Japanese calendar, the Hebrew calendar and the civil Islamic calendar, too.

If Gcal is started without any options or commands, a calendar of the current month is

If the calendar of a definite year is wanted, the year must be fully specified,
e.g.: gcal 94
displays a year calendar of the year 94, not of the year 1994.

If two arguments are given in the command part, the first argument denotes the month and
the second argument denotes the year. In case any illegal commands are given running Gcal
, the program will use internal defaults.


You obtain more program information if you start Gcal as follows:
gcal -h
gcal -?
gcal --help


gcal -hh
gcal -??
gcal --long-help[=ARG]|[=?]
gcal --usage[=ARG]|[=?]
A Hypertext file gcal.info containing detailed online information should be available,
which you can inspect using your GNU Infobrowser.


Gcal Copyright (c) 1994, 95, 96, 1997, 2000 Thomas Esken

This software doesn't claim completeness, correctness or usability. On principle I will
not be liable for any damages or losses (implicit or explicit), which result from using or
handling my software. If you use this software, you agree without any exception to this
agreement, which binds you LEGALLY !!

Gcal is free software and distributed under the terms of the `GNU General Public License';
published by the `Free Software Foundation'; version 2 or (at your option) any later

Any suggestions, improvements, extensions, bug reports, donations, proposals for contract
work, and so forth are welcome! If you like this tool, I'd appreciate a postcard from

Enjoy it =8^)

Use gcal online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

Linux commands

  • 1
    abicheck - check application binaries
    for calls to private or evolving symbols
    in libraries and for static linking of
    some system libraries. ...
    Run abicheck
  • 2
    abicompat - check ABI compatibility
    abicompat checks that an application
    that links against a given shared
    library is still ABI compatible with a
    subsequent ve...
    Run abicompat
  • 3
    cpphs - liberalised cpp-a-like
    preprocessor for Haskell ...
    Run cpphs-hugs
  • 4
    cpphs - liberalised cpp-a-like
    preprocessor for Haskell ...
    Run cpphs
  • 5
    gbase - small numeric base converter ...
    Run gbase
  • 6
    gbbin - A program to bin data ...
    Run gbbin
  • More »