POSIX C POSIX library Microsoft POSIX subsystem Pthreads P.I.P.S. Native POSIX Thread Library Read (system call) ISO/IEC 15897 POSIX terminal interface Berkeley sockets Signal (IPC) List of POSIX commands Unix shell Single UNIX Specification Regular expression DCEThreads Unistd.h SIGHUP Unix time Linux kernel interfaces Getopt Tar (computing) Austin Group Bc (programming language) Spawn (computing) GNU Portable Threads Close (system call) Episode filesystem Unix domain socket Access-control list Java Native Access Fork (system call) Locale (computer software) LinuxThreads Cpio Cygwin Write (system call) Pax (command) Capability-based security Richacls Unix file types EMX (programming environmen…

nt) Stat (system call) Exec (system call) Unicon (programming language) Type (Unix) Cksum Shared memory Rename (computing) Memory-disk synchronization Mailx XtreemFS Almquist shell PX5 RTOS Robotfindskitten Unix-like Fiwix DNA-OS Dot (command) Musl Symbolic link Getopts File-system permissions Temporary file TMPDIR Pwd ObjectiveFS Ne (text editor) Terminal capabilities File locking Sbrk Freedup LDAP Admin Qshell Overlapped I/O Mail (Unix) System V Interface Definition Mmap Process group C standard libr

ary Bourne shell List of emulators Errno.h RTLinux Open-system environment reference model Moose File System Printf (Unix) UWIN Sleep (system call) Process Environment Block Portable character set Environmental subsystem Direct.h Fish (Unix shell) OCFS2 LynxOS Sbase Message queue List of C++ multi-threading libraries Poll (Unix) Scientific Research Institute of System Development Glob (programming) Shell script Common Locale Data Repository Programming model Broken pipe Lennart Poettering Dynamic loading Symlink race DirectNET Protocol Transport Layer Interface Command (Unix) XMD Time (Unix) Shuf Gettext Allied Standards