`i` → Insert mode. Type `ESC` to return to Normal mode.

`x` → Delete the char under the cursor

`:wq` → Save and Quit (`:w` save, `:q` quit)

`dd` → Delete (and copy) the current line

`p` → Paste

`hjkl` (highly recommended but not mandatory) → basic cursor move (←↓↑→).

Hint: `j` looks like a down arrow.
`:help <command>` → Show help about `<command>`. You can use `:help` without a `<command>` to get general help.

## Insert mode

`a` → insert after the cursor
`o` → insert a new line after the current one
`O` → insert a new line before the current one
`cw` → replace from the cursor to the end of the word