put in newline vi, code example

Example 1: vim insert after cursor

a - insert (append) after the cursor

i - insert before the cursor

I - insert at the beginning of the line

A - insert (append) at the end of the line

o - append (open) a new line below the current line

O - append (open) a new line above the current line

ea - insert (append) at the end of the word

Example 2: add enter vim

" Quickly insert an empty new line without entering insert mode
    nnoremap o o
    nnoremap O O