## 8.3. Edit Commands

Recall that `c`, `d`, and `y` are the basic editing operators.

### 8.3.1. Inserting New Text

`a` | Append after cursor.
`A` | Append to end of line.
`i` | Insert before cursor.
`I` | Insert at beginning of line.
`o` | Open a line below cursor.
`O` | Open a line above cursor.
`Esc` | Terminate insert mode.
`CTRL-J` | Move down one line.
`Return` | Move down one line.
`CTRL-I` | Insert a tab.
`CTRL-T` | Move to next tab setting.
`Backspace` | Move back one character.
`CTRL-H` | Move back one character.
`CTRL-U` | Delete current line.
`CTRL-V` | Quote next character.
`CTRL-W` | Move back one word.

### 8.3.2. Changing and Deleting Text

`cw` | Change word.
`cc` | Change line.
`C` | Change text from current position to end of line.
`dd` | Delete current line.
`n` `dd` | Delete n lines.
`D` | Delete remainder of line.
`dw` | Delete a word.
`d}` | Delete up to next paragraph.
`d^` | Delete back to beginning of line.
`d/``pat` | Delete up to first occurrence of pattern.
`dn` | Delete up to next occurrence of pattern.
`df` `a` | Delete up to and including a on current line.
`dt` `a` | Delete up to (but not including) a on current line.
`dL` | Delete up to last line on screen.
`dG` | Delete to end of file.
`p` | Insert last deleted text after cursor.
`P` | Insert last deleted text before cursor.
`r` `x` | Replace character with x.
`R` `text` | Replace with new text (overwrite), beginning at cursor.
`s` | Substitute character.
`4s` | Substitute four characters.
`S` | Substitute entire line.
`u` | Undo last change.
`U` | Restore current line.
`x` | Delete current cursor position.
`X` | Delete back one character.
`5X` | Delete previous five characters.
`.` | Repeat last change.
`~` | Reverse case.

### 8.3.3. Copying and Moving

`Y` | Copy current line to new buffer.
`yy` | Copy current line.
`"``x` `yy` | Yank current line to buffer x.
`"``x` `d` | Delete into buffer x.
`"``X` `d` | Delete and append into buffer x.
`"``x` `p` | Put contents of buffer x.
`y]]` | Copy up to next section heading.
`ye` | Copy to end of word.

Buffer names are the letters `a`–`z`. Uppercase names append text to the specified buffer.

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