Secondly, Linux only adopts UNIX standard, but the underlying kernel is different, which does not infringe the copyright of Uinx and there is no way to protect rights ...
For example, according to national or international standards, the size of the screw is so big, and you are a commercial company and made of gold, so I am a small workshop and made of copper. According to the same specifications ... Unless the size of that standard is your exclusive patent, you can't sue me for infringement ... And its standard is public rather than private!
And finally … there is no orthodox view on …Unix … because they are just systems developed by several companies based on a publicly available file management system, which were divided into several "schools" from the beginning and all considered authentic … the landlord can learn about its formation and development history …