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GNU Mcron

mcron logo

The GNU package mcron (Mellor's cron) is a 100% compatible replacement for Vixie cron. It is written in pure Guile, and allows configuration files to be written in scheme (as well as Vixie's original format) for infinite flexibility in specifying when jobs should be run. Mcron was written by Dale Mellor (see his personal web pages).

A copy of a white paper describes the motivation and initial design concepts of mcron.

Downloading Mcron

Mcron can be found on the main GNU ftp server: http://ftp.gnu.org/gnu/mcron/ (via HTTP) and ftp://ftp.gnu.org/gnu/mcron/ (via FTP). It can also be found on the GNU mirrors; please use a mirror if possible.


Documentation for Mcron is available online, as is documentation for most GNU software. You may also find more information about Mcron by running info mcron or man mcron, or by looking at /usr/share/doc/mcron/, /usr/local/doc/mcron/, or similar directories on your system. A brief summary is available by running mcron --help.

Mailing lists

Mcron has the following mailing lists:

Announcements about Mcron and most other GNU software are made on info-gnu (archive).

Security reports that should not be made immediately public can be sent directly to the maintainer. If there is no response to an urgent issue, you can escalate to the general security mailing list for advice.

Getting involved

Development of Mcron, and GNU in general, is a volunteer effort, and you can contribute. For information, please read How to help GNU. If you'd like to get involved, it's a good idea to join the discussion mailing list (see above).

For development sources, issue trackers, and other information, please see the Mcron project page at savannah.gnu.org.
Mcron is currently maintained by Adam Bilbrough.


Mcron is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.


 [FSF logo] “The Free Software Foundation (FSF) is a nonprofit with a worldwide mission to promote computer user freedom. We defend the rights of all software users.”


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