# BadUSB File Format {#badusb_file_format}

## Command syntax

BadUsb app uses extended DuckyScript syntax.

It is compatible with classic USB Rubber Ducky 1.0 scripts but provides some additional commands and features,
such as custom USB ID, `ALT` + `Numpad` input method, `SYSRQ` command, and more functional keys.

## Script file format

BadUsb app can execute only text scripts from `.txt` files, no compilation is required. Both `\n` and `\r\n` line endings are supported. Empty lines are allowed. You can use spaces or tabs for line indentation.

## Command set

### Comment line

Just a single comment line. The interpreter will ignore all text after the `REM` command.

| Command  | Parameters    | Notes   |
|:---------|:--------------|:--------|
| REM      | Comment text  |         |

### Delay

Pause script execution by a defined time.

| Command       | Parameters                | Notes                                 |
|:--------------|:--------------------------|:--------------------------------------|
| DELAY         | Delay value in ms         | Single delay                          |
| DEFAULT_DELAY | Delay value in ms         | Add delay before every next command   |
| DEFAULTDELAY  | Delay value in ms         | Same as DEFAULT_DELAY                 |

### Special keys

| Command             | Notes             |
|:--------------------|:------------------|
| DOWNARROW / DOWN    |                   |
| LEFTARROW / LEFT    |                   |
| RIGHTARROW / RIGHT  |                   |
| UPARROW / UP        |                   |
| ENTER               |                   |
| DELETE              |                   |
| BACKSPACE           |                   |
| END                 |                   |
| HOME                |                   |
| ESCAPE / ESC        |                   |
| INSERT              |                   |
| PAGEUP              |                   |
| PAGEDOWN            |                   |
| CAPSLOCK            |                   |
| NUMLOCK             |                   |
| SCROLLLOCK          |                   |
| PRINTSCREEN         |                   |
| BREAK               | Pause/Break key   |
| PAUSE               | Pause/Break key   |
| SPACE               |                   |
| TAB                 |                   |
| MENU                | Context menu key  |
| APP                 | Same as MENU      |
| Fx                  | F1-F12 keys       |

### Modifier keys

Can be combined with a special key command or a single character.

| Command         | Notes        |
|:----------------|:-------------|
| CONTROL / CTRL  |              |
| SHIFT           |              |
| ALT             |              |
| WINDOWS / GUI   |              |
| CTRL-ALT        | CTRL+ALT     |
| CTRL-SHIFT      | CTRL+SHIFT   |
| ALT-SHIFT       | ALT+SHIFT    |
| ALT-GUI         | ALT+WIN      |
| GUI-SHIFT       | WIN+SHIFT    |
| GUI-CTRL        | WIN+CTRL     |

## Key hold and release

Up to 5 keys can be hold simultaneously.

| Command  | Parameters                       | Notes                                     |
|:---------|:---------------------------------|:------------------------------------------|
| HOLD     | Special key or single character  | Press and hold key until RELEASE command  |
| RELEASE  | Special key or single character  | Release key                               |

## String

| Command   | Parameters   | Notes                                       |
|:----------|:-------------|:--------------------------------------------|
| STRING    | Text string  | Print text string                           |
| STRINGLN  | Text string  | Print text string and press enter after it  |

## String delay

Delay between key presses.

| Command               | Parameters         | Notes                                          |
|:----------------------|:-------------------|:-----------------------------------------------|
| STRING_DELAY          | Delay value in ms  | Applied once to next appearing STRING command  |
| STRINGDELAY           | Delay value in ms  | Same as STRING_DELAY                           |
| DEFAULT_STRING_DELAY  | Delay value in ms  | Apply to every appearing STRING command        |
| DEFAULTSTRINGDELAY    | Delay value in ms  | Same as DEFAULT_STRING_DELAY                   |

### Repeat

| Command  | Parameters                    | Notes                    |
|:---------|:------------------------------|:-------------------------|
| REPEAT   | Number of additional repeats  | Repeat previous command  |

### ALT+Numpad input

On Windows and some Linux systems, you can print characters by holding `ALT` key and entering its code on Numpad.
| Command   | Parameters     | Notes                                                           |
| :---------- | :--------------- | :--------------------------------------------------------------- |
| ALTCHAR   | Character code | Print single character                                          |
| ALTSTRING | Text string    | Print text string using ALT+Numpad method                       |
| ALTCODE   | Text string    | Same as ALTSTRING, presents in some DuckyScript implementations |

### SysRq

Send [SysRq command](https://en.wikipedia.org/wiki/Magic_SysRq_key)

| Command  | Parameters        | Notes  |
|:---------|:------------------|:-------|
| SYSRQ    | Single character  |        |

## Media keys

Some Media/Consumer Control keys can be pressed with `MEDIA` command

| Command  | Parameters                 | Notes |
|:---------|:---------------------------|:------|
| MEDIA    | Media key, see list below  |       |


| Key name           | Notes                          |
|:-------------------|:-------------------------------|
| POWER              |                                |
| REBOOT             |                                |
| SLEEP              |                                |
| LOGOFF             |                                |
| EXIT               |                                |
| HOME               |                                |
| BACK               |                                |
| FORWARD            |                                |
| REFRESH            |                                |
| SNAPSHOT           | Take photo in a camera app     |
| PLAY               |                                |
| PAUSE              |                                |
| PLAY_PAUSE         |                                |
| NEXT_TRACK         |                                |
| PREV_TRACK         |                                |
| STOP               |                                |
| EJECT              |                                |
| MUTE               |                                |
| VOLUME_UP          |                                |
| VOLUME_DOWN        |                                |
| FN                 | Fn/Globe key on Mac keyboard   |
| BRIGHT_UP          | Increase display brightness    |
| BRIGHT_DOWN        | Decrease display brightness    |

## Fn/Globe key commands (Mac/iPad)

| Command  | Parameters                       | Notes  |
|:---------|:---------------------------------|:-------|
| GLOBE    | Special key or single character  |        |

## Wait for button press

Will wait indefinitely for a button to be pressed

| Command               | Parameters | Notes                                                                         |
|:----------------------|:-----------|:------------------------------------------------------------------------------|
| WAIT_FOR_BUTTON_PRESS | None       | Will wait for the user to press a button to continue script execution         |

## USB device ID

You can set the custom ID of the Flipper USB HID device. ID command should be in the **first line** of script, it is executed before script run.

| Command  | Parameters                    | Notes  |
|:---------|:------------------------------|:-------|
| ID       | VID:PID Manufacturer:Product  |        |

Example:
```text
ID 1234:abcd Flipper Devices:Flipper Zero
```

> [!IMPORTANT]
> 
> VID and PID are hex codes and are mandatory. 
> Manufacturer and Product are text strings and are optional.