You have stated that those are more than open source UNIX tools. This is funny and serious in the same time, as GNU is Not Unix is what GNU means (among other meanings).
GNU is Not Unix and it should be well known fact. Naming those tools UNIX are also in violation of trademarks. GNU programs never name its programs as "UNIX" programs. Reference: http://www.unix.org/trademark.html so please make appropriate credits to GNU, as it is not "UNIX" and UNIX was never even used in GNU project.
You have stated that those are more than open source UNIX tools. This is funny and serious in the same time, as GNU is Not Unix is what GNU means (among other meanings).
GNU is Not Unix and it should be well known fact. Naming those tools UNIX are also in violation of trademarks. GNU programs never name its programs as "UNIX" programs. Reference: http://www.unix.org/trademark.html so please make appropriate credits to GNU, as it is not "UNIX" and UNIX was never even used in GNU project.
Another issue is that GNU programs were never called "open source" by the GNU project. Please see: https://www.gnu.org/philosophy/open-source-misses-the-point.html