## Readline Shortcut

`Meta`+`B` means press `Esc` and `n` separately.
Users can change that in terminal simulator(i.e. iTerm2) to `Alt`+`B`
Notice: `Meta`+`B` is equals with `Alt`+`B` in windows.

* Shortcut in normal mode

| Shortcut                  | Comment                           |
| ------------------------- | --------------------------------- |
| `Ctrl`+`A`                | Beginning of line                 |
| `Ctrl`+`B` / `←`          | Backward one character            |
| `Meta`+`B` / `Ctrl`+`←`   | Backward one word                 |
| `Ctrl`+`C`                | Send io.EOF                       |
| `Ctrl`+`D`                | Delete one character              |
| `Meta`+`D`                | Delete one word                   |
| `Ctrl`+`E`                | End of line                       |
| `Ctrl`+`F` / `→`          | Forward one character             |
| `Meta`+`F` / `Ctrl`+`→`   | Forward one word                  |
| `Ctrl`+`G`                | Cancel                            |
| `Ctrl`+`H`                | Delete previous character         |
| `Ctrl`+`I` / `Tab`        | Command line completion           |
| `Ctrl`+`J`                | Line feed                         |
| `Ctrl`+`K`                | Cut text to the end of line       |
| `Ctrl`+`L`                | Clear screen                      |
| `Ctrl`+`M`                | Same as Enter key                 |
| `Ctrl`+`N` / `↓`          | Next line (in history)            |
| `Ctrl`+`P` / `↑`          | Prev line (in history)            |
| `Ctrl`+`R`                | Search backwards in history       |
| `Ctrl`+`S`                | Search forwards in history        |
| `Ctrl`+`T`                | Transpose characters              |
| `Meta`+`T`                | Transpose words (TODO)            |
| `Ctrl`+`U`                | Cut text to the beginning of line |
| `Ctrl`+`W`                | Cut previous word                 |
| `Backspace`               | Delete previous character         |
| `Meta`+`Backspace`        | Cut previous word                 |
| `Enter`                   | Line feed                         |


* Shortcut in Search Mode (`Ctrl`+`S` or `Ctrl`+`r` to enter this mode)

| Shortcut                | Comment                                 |
| ----------------------- | --------------------------------------- |
| `Ctrl`+`S`              | Search forwards in history              |
| `Ctrl`+`R`              | Search backwards in history             |
| `Ctrl`+`C` / `Ctrl`+`G` | Exit Search Mode and revert the history |
| `Backspace`             | Delete previous character               |
| Other                   | Exit Search Mode                        |

* Shortcut in Complete Select Mode (double `Tab` to enter this mode)

| Shortcut                | Comment                                  |
| ----------------------- | ---------------------------------------- |
| `Ctrl`+`F`              | Move Forward                             |
| `Ctrl`+`B`              | Move Backward                            |
| `Ctrl`+`N`              | Move to next line                        |
| `Ctrl`+`P`              | Move to previous line                    |
| `Ctrl`+`A`              | Move to the first candicate in current line |
| `Ctrl`+`E`              | Move to the last candicate in current line |
| `Tab` / `Enter`         | Use the word on cursor to complete       |
| `Ctrl`+`C` / `Ctrl`+`G` | Exit Complete Select Mode                |
| Other                   | Exit Complete Select Mode                |