What (who) is POSIX - definition
FAMILY OF STANDARDS FOR MAINTAINING COMPATIBILITY BETWEEN OPERATING SYSTEMS
IEEE 1003; Posix; POSIX.1; POSIX 1003.2; A Posix Environment; A POSIX Environment; Dirent.h; ISO/IEC 9945; Ixemul.library; Utime.h; C posix library; Telldir; Closedir; Opendir; Readdir; Readdir r; Rewinddir; Seekdir; Portable Operating System Interface; POSIX.1-2001; POSIX.1-2008; Cpio.h; Grp.h; Pwd.h; Sys/ipc.h; Sys/msg.h; Sys/sem.h; Sys/types.h; Sys/utsname.h; Sys/wait.h; Tar.h; POSIX.2; IEEE-IX; IEEEIX; POSIX.1b; RT-POSIX
POSIX
Portable Operating System for unIX (Reference: OS, IEEE 1003, ISO 9945, PASC, Unix)
C POSIX library
The C POSIX library is a specification of a C standard library for POSIX systems. It was developed at the same time as the ANSI C standard.
Wikipedia
POSIX
The Portable Operating System Interface (POSIX, with pos pronounced as in positive, not as in pose) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. POSIX defines both the system and user-level application programming interfaces (APIs), along with command line shells and utility interfaces, for software compatibility (portability) with variants of Unix and other operating systems. POSIX is also a trademark of the IEEE. POSIX is intended to be used by both application and system developers.
