For file and folder management, that number dwindles. I've already listed what I believe are the 5 Linux commands every user should learn, all of which are also related to file and folder management.

/ The Root Directory Everything on your Linux system is located under the / directory, known as the root directory.

A chroot is a root Linux file system within another. So by creating one, we can put ourselves inside our OS-in-progress and paint the house from the inside, so to speak.