Hello all, I'm currently a student trying to get their associates degree in cyber security and in their first Linux course (which I really don't have much experience in) and I have herd BASH being tossed about a lot. At first I thought, it was some kind of scripting/coding language but, then I see it being compared to DOS. So I guess my question is what is BASH? How important is BASH to Linux? and how if it is extremely important, if there is any books or on line videos I should read or watch to get a better understanding. Thank you for any help.