File Import/Export Card

The file import/export card allows breaking the fourth wall. It allows:

For added convenience, the default Linux distribution provides two utility scripts for these operations, import.lua and export.lua.

import.lua will, when run, prompt for a file to upload to the virtual computer. The file will be stored in the current working directory. If a file with the name of the imported file already exists, the option to provide an alternative name will be offered.

export.lua takes as its parameter the path to a file in a virtual computer. It then downloads this file to your real computer and offers a save dialog, offering the choice of where to save the downloaded file, or to cancel the operation.

Both scripts will prompt all users currently interacting with the computer's terminal. For upload operations (import.lua), the first uploaded file will be used. The prompts on other clients will be canceled. For download operations all clients will be offered to save the exported file.

Programs drive the card through the file_import_export device, which is what import.lua and export.lua use. See the file import/export device reference for its methods.