Most of the following so far has been borrowed from: 
https://raw.githubusercontent.com/damieng/BBCMicroTools/master/tips-and-tricks.md

  ____  _            _   _      _       
 |  _ \(_)___  ___  | | | | ___| |_ __  
 | | | | / __|/ __| | |_| |/ _ \ | '_ \ 
 | |_| | \__ \ (__  |  _  |  __/ | |_) |
 |____/|_|___/\___| |_| |_|\___|_| .__/ 
                                 |_|    
        Edited by TheOuterLinux         
     https://theouterlinux.gitlab.io    

        Last updated (by TOL): 2020/04/20

## Keyboard shortcuts
.-----------------.-------------------------.
| Shortcut        | Description             |
|-----------------|-------------------------|
| [SHIFT]+[BREAK] | Boot disc (if bootable) |
| [SHIFT]+[CTRL]  | Pause scrolling         |
`-----------------'-------------------------'

## Make a disc bootable
If your disc doesn't boot with [SHIFT]+[BREAK] and you'd like it to then:

1. Type ``*CAT`` to see what's on the disc
2. Figure out (through trial an error) which file you need to run. 
   Typically it will either be a ``CHAIN "filename"`` or ``*RUN filename`` 
   or maybe even a ``*EXEC filename`` or just ``*filename``
3. Type ``*BUILD !BOOT`` then [ENTER] and you will see an editor
4. Type the command you used to run the software
5. Press [ENTER] then [BREAK]
6. Type ``*OPT 4,3`` then [ENTER] to make the disc ``*EXEC !BOOT`` when 
   [SHIFT]+[BREAK] is pressed

If you use ``*CAT`` (or ``*.``) to see the contents again you will now 
notice the new !BOOT file and Option 3 (EXEC) to execute it. The whole 
process looks something like:

````````````````````````````````````````````````````````````````````````
BBC Computer 32K

Acorn DFS

BASIC

>*CAT
Format 2.23  (13)
Drive 0             Option 0 (off)
Dir. :0.$           Lib. :0.$

    FORMAMC  L          FORMATC  L
    STAMP    L
>*BUILD !BOOT
0001 CH. "FORMATC"
0002
Escape
>*OPT 4,3
*CAT
Format 2.23  (13)
Drive 0             Option 3 (EXEC)
Dir. :0.$           Lib. :0.$

    !BOOT               FORMAMC  L
    FORMATC  L          STAMP    L
>
````````````````````````````````````````````````````````````````````````

## Disc commands
These are basic Acorn DFS commands, other implementations and ADFS may vary.
.-------------------.--------------------.
| Command           | Description        |
|-------------------+--------------------|
| *CAT              | Show disc contents |
| *TYPE file        | Show text of file  |
| *EXEC file        | Run text file      |
| *TITLE name       | Set disc title     |
| *DELETE file      | Delete file        |
| *BUILD file       | Create text file   |
| *DRIVE number     | Switch drive       |
`-------------------'--------------------'

## Short commands
.-------------------------.--------------------------------------------.
| Command                 | Description                                |
|-------------------------+--------------------------------------------|
| *KEY10 "OLD \|\| RUN"   | Restart program on [BREAK]                 |
| *FX 200,1               | Disable [ESC]                              |
| *FX 200,3               | Disable [ESC] and clear ram on [BREAK]     |
`-------------------------'--------------------------------------------'