FreeBSD and Linux are both unixoid OSes. (More precisely, Linux is only a kernel, an OS using Linux is usually known as GNU/Linux or as some like to call it GNU+Linux)
Unlike Linux, which was backwards engineered to be POSIX (a Unix standard) compatible, FreeBSD derived directly from Unix (although it doesn’t use any original Unix code anymore).
FreeBSD and Linux are both unixoid OSes. (More precisely, Linux is only a kernel, an OS using Linux is usually known as GNU/Linux or as some like to call it GNU+Linux)
Unlike Linux, which was backwards engineered to be POSIX (a Unix standard) compatible, FreeBSD derived directly from Unix (although it doesn’t use any original Unix code anymore).