What is the Dollar sign (“$”) at the end of every line in Vim

Question

I am relatively new to Vim. Whenever I start Vim using vim LearnRuby.rb, a dollar sign appears at every line.

Why?

Answer 1

Open ~/.vimrc and check its contents
If you see a line like this:

set list

It means, it will display $ in every line to mark the end of line.
Either remove it or use :set nolist command in the vi editor.