If all you do is use the Desktop Environment or a Window Manager, you are missing out on some of the real power of UNIX and Linux. The Shell, what is it? What Does it Do? Why do we need a shell? In this video I discuss the evolution of the shell from 1971 up through 2006, yes more has been done on shells since 2006. Mark Paq did a great job of outlining the history of the shell on UNIX and I am going to augment that with some personal experiences with the Shell and the history I saw as they changed over time. Mark Paq GitHub page with more links on Shells: https://github.com/marcpaq/shellancestry At the end of this video I am going to include a gource (that is not mispelled) video on the development of UNIX from 1970 - 1985, it shows how UNIX grew in size and the small start with 2-3 developers growing into several thousand by 1985, Chapters 00:00 - Intro 00:07 - Shell 00:16 - Quote 01:23 - Shell is a REPL 02:36 - Where did the shell come from? 03:16 - Mashey Shell 05:22 - Thompson Shell 06:49 - Why do we need a Shell? 08:25 - Shells of Unix (1971-2006) 10:37 - Korn Shell 11:53 - Bourne Shell 13:40 - BASH Shell 14:34 - Forsyth Shell 16:12 - Almquist Shell 17:38 - Final Thoughts 17:53 - Wrapup Support me on Patreon: https://www.patreon.com/DJWare Follow me: Twitter @djware55 Facebook:https://www.facebook.com/don.ware.7758 Gitlab: https://gitlab.com/djware27 #Linux #UNIX #Shells