No it’s not, it’s based on BSD, or more specifically Darwin, which is derived from BSD, so Unix-like, but not Linux.
Although, oddly, macOS is a certified UNIX OS so it can rightfully sit at the table with the SysV distros such as AIX, HP-UX, or Solaris, but it’s nothing like those OSes in its nature.
Just remember that they didn’t certify macOS for any practical reason, Apple was just weaseling out of a lawsuit and figured that paying the certification was cheaper than damages. I think they lost the certification some time later. Newer macOS is not Unix certified.
No it’s not, it’s based on BSD, or more specifically Darwin, which is derived from BSD, so Unix-like, but not Linux.
Although, oddly, macOS is a certified UNIX OS so it can rightfully sit at the table with the SysV distros such as AIX, HP-UX, or Solaris, but it’s nothing like those OSes in its nature.
Not just Unix-like but actually ancestrally Unix as well as being certified as Unix
Just remember that they didn’t certify macOS for any practical reason, Apple was just weaseling out of a lawsuit and figured that paying the certification was cheaper than damages. I think they lost the certification some time later. Newer macOS is not Unix certified.
It’s UNIX 03 compliant https://en.m.wikipedia.org/wiki/Single_UNIX_Specification