This chapter will present the basics of the Linux filesystem. Because filesystems are complicated, we will not be delving too deeply into the guts of the technology; instead, we'll present just enough information that's still relevant for shell scripting.
The Linux filesystem explained
What is a filesystem?
A filesystem is, in essence, the way data is stored and retrieved on a physical medium (which can be a hard disk, solid state drive, or even RAM). It is a software implementation that manages where and how the bits are written and found again, and may include various advanced features which enhance reliability, performance, and functionality.
The concept of a filesystem is abstract: there are many filesystem implementations...
