Eight Edition Unix
, also known as Version 8 Unix
, was a version of the Research Unix operating system
developed and used internally at Bell Labs
. It was "released" in February 1985
, ran on VAX
hardware, and was a variant of 4.1cBSD
with some System V.2
features (notably the shell
). V8 was the successor to V7
and the predecessor to V9
V8 Unix introduced the STREAMS I/O mechanism, the /proc filesystem and several other features later incorporated into System V.
V8 also featured a network file system, which permitted access to other machines' entire filesystem trees. For example, the file /etc/passwd on server foovax would be accessible to client machines as /n/foovax/etc/passwd.
The Unix Programming Environment was prepared on a VAX-11/750 running a preliminary version of V8 Unix.