No matter how hard it looks emacs is not that hard to use, at least for basic purposes.
Let’s install emacs first:
sudo apt-get install emacs -y
Install Steel bank common lisp the Common Lisp compiler:
sudo apt-get install sbcl
Install the slime(Superior Lisp Interaction for Emacs) for Emacs:
sudo apt-get install slime
Now, we can open the emacs
Press “Alt – X” to jump to the command line and type “slime” and open up our working environment.
For example, let’s code a function that returns the double of given integers.
We will have a screen like the one below;
; SLIME 2015-08-24 CL-USER>
We can start coding here:
(defun double (x) (* x 2))
After we complete the function we can call it and give an input.
It will return 12 as you know.
Good luck, have fun!