Please enable a 'vi' editing mode for the mongo shell.

• Similar to vi mode in bash
• Similar to https://www.npmjs.com/package/mongovi

A first cut of key bindings would be:

Basic command mode/editing mode toggling:
i Insert before cursor
Esc Toggle to command mode

Cursor motion keys:
h Move left
j Move down
k Move up
l Move right

w Move to next word
b Move to the beginning of the word

0 Move to the beginning of the line
$ Move to the end of the line

And delete/change:
x delete next character to the right
d

{motion} delete amount specified by {motion}
c

{motion} delete amount specified by {motion}
and also put you in insert mode