Need book on Unix systems programming

[2141smh at aluxe.UUCP]

> Does anyone know of any book(s) which deal with Unix systems programming?
"Programming Guide, UNIX System", Western Electric Publication #341-930
Dated January, 1983: Includes simple commands, shell procedures, keyword
parameters, shell tutorial, unix environment, shell basics, shell commands,
supporting commands, efficient programming, C language (libraries, compiler,
syntax checking, debugging), fortran77, ratfor in 166 pages.