This chapter provided a general overview of the main Unix components and how they interact with each other. We started with memory management and how it works in Unix, understanding concepts such as pagination and swap.
Then we analyzed the filesystem, taking a look at the support from modern operating systems, and explained the difference between the existing file types: files, directories, and hard and soft links.
After learning about the concept of inode, we took a look at the structure of a directory in a Unix operating system and explained how to navigate and interact with the filesystem, as well as how to mount and unmount other partitions.
We moved on to processes, running applications in Unix, and their structure and attributes. We analyzed process life cycle, from its creation through fork or exec, to its end or termination with the kill command...
