The GNU Project: An ongoing effort to provide a complete UNIX-compatible software system composed entirely of free software. Learn about The GNU Project
Linux Foundation: Works to promote, protect, and standardize Linux by providing unified resources and services. Visit the Linux Foundation
The Creation of the UNIX Operating System: An overview of UNIX's history and legacy by Bell Labs. Read about UNIX's Creation
The UNIX Heritage Society: Preserves and promotes the legacy of UNIX systems through historical documents and software. Explore The UNIX Heritage Society
"The Design of the UNIX Operating System" by Maurice J. Bach: A detailed look at the internal algorithms, structures, and systems within UNIX.
"UNIX and Linux System Administration Handbook" by Evi Nemeth, Garth Snyder, Trent R. Hein, and Ben Whaley: A comprehensive guide to UNIX and Linux systems, covering administration, networking, and security.
"Advanced Programming in the UNIX Environment" by W. Richard Stevens and Stephen A. Rago: Explores UNIX system calls and programming techniques across various versions.