How to Install Kernel Headers on Ubuntu 23.04 – Step by step

GNU/Linux Ubuntu 23.04 Installing Kernel Headers Guide

How to Install Linux Kernel Headers on Ubuntu 23.04 Lunar GNU/Linux – Step by step Tutorial.

And Ubuntu Lunar Kernel Headers contain the C Header Files for the Linux Kernel.

Which offers the various Function and Structure Definitions required when Compiling any Code that Interfaces with the Kernel, such as Kernel Modules or Device Drivers and some User Programs.

Last, possibly to Install a Custom Kernel with Headers you may see: Installing New Kernel from Source.

1. 1. Terminal Quick Start

   How to Quick Start with Command Line on Ubuntu

   Bash Shell Ubuntu Quick Start Guide

   Getting Started with Command Line on Ubuntu

   First, Update the Apt Repo Sources with:

   sudo apt update