4.4BSD Programmer′s Supplementary Documents
Dennis Ritchie and Ken Thompson′s original paper about UNIX, reprinted from Communications of the ACM. Describes the programming interface to the UNIX version 7 operating system and the standard I/O library. Should be supplemented by Kernighan and Pike, \"The UNIX Programming Environment′′, Prentice-Hall, 1984 and especially by the Programmer Reference Manual section 2 (system calls) and 3 (library routines).
