UNIX System V Bourne shell Bs (programming language) Leonard Rose (hacker) Microport Systems AT&T Computer Systems AT&T UNIX PC Remote File Sharing Transport Layer Interface Locus Computing Corporation Getopts Convergent Technologies Merge (software) UnixWare Interactive Systems Corporation Procfs DNIX Jenderal Soedirman University Network socket Xinuos Getopt ANSI escape code Asynchronous I/O OpenServer Santa Cruz Operation Novell IRIX