1. Before you begin You need a working Linux system that includes the bash shell, so you can practice the commands and techniques covered in this knowledge path. Our command examples are taken from Ubuntu and Fedora, but they apply to most other Linux distributions as well. 2. Get comfortable with the bash shell
Have you wondered why certain programs are located under /bin, or /sbin, or /usr/bin, or /usr/sbin? For example, less command is located under /usr/bin directory. Why not /bin, or /sbin, or /usr/sbin? What is the different between all these directories?