Chapter 11

System Calls and Kernels

In the previous chapter, we discussed the history of Unix and its onion-like architecture. We also introduced and talked about the POSIX and SUS standards governing the shell ring in Unix, before explaining how the C standard library is there to provide common functionalities exposed by a Unix-compliant system.

In this chapter, we are going to continue our discussion of the system call interface and the Unix kernel. This will give us a complete insight into how a Unix system works.

After reading this chapter, you will be able to analyze the system calls a program invokes, you will be able to explain how the process lives and evolves inside the Unix environment, and you will also be able to use system calls ...

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