Unix-like
OPERATING SYSTEM THAT BEHAVES IN A MANNER SIMILAR TO A UNIX SYSTEM
UNIX-like; Un*x; UNIX-style; Unix-style; Unices; Unix-like operating system; Unx; *NIX; *nix; Unix-alike; Open source Unix; Open source unix; *nice; *nices; Unixoid; *Nix; *n*x; Unix like; UNIX like; Unix clone; Unix-like system; Unix-like OS; Unix-Like; Genetic Unix; Functional Unix; Trademark Unix; Branded Unix; UN*X; UNIX-like operating system; Unixen; Compatibility layers for Unix-like operating systems
A Unix-like (sometimes referred to as UN*X or *nix) 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 Single UNIX Specification. A Unix-like application is one that behaves like the corresponding Unix command or shell.