Old timers, what did you read to study Unix or languages by the book?

Rather than all the lousy camps and tuts out there I am wondering what the old timers read for Computer Science that is still relevant today.

Free space:

-The C Programming Language by Dennis Ritchie

-RTFM

- The Design of the Unix Operating System

- The elements of programming style

- Code Complete, 2nd Edition

- The Art of Unix Programming

- Advanced Programming in the Unix Environment

- TCP/IP Illustrated, Volume 1

* Concepts, Techniques, and Models of Computer Programming

* Engineering a Compiler

* The Elements of Computing Systems

None of this is useful for you other than discussing things with fellow programmers.

SICP, Abelson and Sussman

Stroustrup

Aho and Ullman compilers

A Commentary on the UNIX Operating System

GNU C Library

Michael Kerrisks books are newer but are exceptional

Pike and Kernighan's "The Unix Programming Environment", and their later book "The Practice of Programming"

Usenix put out a refereed journal "Computing Systems" that was really good: https://www.usenix.org/publications/compsystems/computing-sy...

Programming Perl (the camel book)

Unix I just kind of learned by using it.