| Command | Description |
|---|
| CATALOG | Shows a directory listing. (On ProDOS you can also use CAT) |
| LOAD filename | Loads a Applesoft BASIC program. |
| SAVE filename | Saves a Applesoft BASIC program. |
| RUN filename | Loads and runs a Applesoft BASIC program. |
| BLOAD filename | Loads a binary file. |
| BSAVE filename,Aaddr,Llen | Saves a binary file. |
| BRUN filename | Loads and executes a binary file |
| OPEN filename | Opens a text file. For BASIC programs only. |
| CLOSE [filename] | Closes specified (or all) open text files. |
| READ filename | Reads from a text file. For BASIC programs only. |
| WRITE filename | Writes to a text file. For BASIC programs only. |
| APPEND filename | Appends to a text file. For BASIC programs only. |
| POSITION filename | Sets position in text file. For BASIC programs only. |
| EXEC filename | 'Executes' a text file, as if every line was typed. |
| DELETE filename | Attempts to remove a file from disk |
| LOCK filenname | Quick file protect from change or deletion |
| UNLOCK filenname | Undoes a LOCK |
| RENAME file1,file2 | Renames 'file1' to 'file2' |
| IN#slotnum | Redirects input from the specified slot |
| PR#slotnum | Redirects output to the specified slot |
| VERIFY filename | Checks existence, DOS 3.3 checks if is readable |
| Command | Description |
|---|
| CAT | 40-column directory listing. |
| PREFIX [dirname] | Displays current directory or changes current dir. |
| CREATE filename | Creates a file with optional type |
| - filename | Executes Applesoft, binary, text, system file |
| BYE | Exits to ProDOS application switcher |
| FLUSH | Writes all buffers to disk |
| CHAIN filename | Runs another Applesoft program, variables intact |
| FRE | Faster Applesoft string garbage collection |
| STORE filename | Writes Applesoft variables to a file |
| RESTORE filename | Reads Applesoft variables from a file |
| MTR | Jumps to monitor (same as 'CALL -151') |