Free Programming Tutorials

“>One of Unix’s hallmarks is its process model. It is the key to understanding access rights, the relationships among open files, signals, job control, and most other low-level topics in this book. Linux adopted most of Unix’s process model and added new ideas of its own to allow a truly lightweight threads implementation.10.1 Defining a ProcessWhat exactly is a process? In the original Unix implementations, a process was any executing program. For each program, the kernel kept track  
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