New requirements and bugs

[djhons]

Should we consider adding the function of uploading and downloading files? And I found that in the shell situation, I cannot use the backspace key.

[CPunch]

I've debated on adding the ability to export/import files from bot machines and I don't think I'll end up doing so. As for the shell bug, that whole target needs to be rewritten to use a nice readline() implementation instead of rolling my own. My instinct is to use something like linenoise but I haven't completely decided yet. Sorry for the late reply!