Is Linux Just Another Unix Flavor?
What defines an operating system isn't a geeky label or a collection of ramblings from the mouths of its community members. Nor is it some empty and pointless certification offered up by an obscure group of malcontented purveyors of "standards."
An operating system is a kernel, a supporting cast of programs, and a concept. For certain commercial entities, it’s also a marketing campaign, hype and profit. But, is the Linux operating system just another flavor of the Unix operating system? Yes. But, it’s also much more.
What you, as a business owner, want to know is if Linux is enough like Unix that you can transition from a commercial Unix flavor to Linux with minimum hassle and expense. The answer is yes.