Abstract
SUS
- Stands for Single Unix Specification
- A Similar standards to POSIX
- Significant license fee associated with getting this branding, but certified means compatible with other Unix based system
OS that is SUS compliant
- macOS (after 2015)
- Solaris (Oracle)
Unix-like
- A Unix-like operating system is one that behaves in a manner similar to a Unix system, although not necessarily conforming to or being certified to any version of the SUS
- A Unix-like application is one that behaves like the corresponding Unix command or shell. Although there are general philosophies for Unix design, there is no technical standard defining the term, and opinions can differ about the degree to which a particular operating system or application is Unix-like
Example
Some examples Unix-like systems are Linux Kernel, macOS, BSD, etc.