SCO UNIX is the leading brand of UNIX for PCs with nearly 40% of the worldwide share of UNIX installations.This book is based on the forthcoming release of SCO UNIX and provides a practical hands-on approach to mastering UNIX internals. Features * provides numerous examples in C-Shell script and assembly language showing where to find and process kernel structures, system files, executable file formats, memory, file and process managemen * includes a detailed description of hardware dependent parts of the kerne * makes a detailed exploration of how the bootstrap and kernel routines set up and use the hardware feature * each chapter uses the most appropriate tools available, including adb, crash, fs db, kmem and nlist to demonstrate the topics under discussion, how they work and how to extract the required information