Hello there. mostly, when I edit some of the configuration files in a terminal mode, i usually think about the differences of the two; vi and nano. When I used nano or we can say pico, it just like an editor on a notepad wherein it's easy to used and there is some commands there in the bottom that you can write, exit, etc. I usually used ctrl+o and save in that directory. While i'm using vi, i dont know how to save it and for me its hard to manipulate. From friendt say that i will used shift+":"+wq in order to save. Im to confuse but I rather choose nano or pico instead... Those who are concerned, type it here. I will appreciate it.