Datamash was accepted as GNU package on July 3rd, 2014.
Official website will be http://www.gnu.org/software/datamash (though it is not up and running yet - waiting for approval on savannah.gnu.org ).
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
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