qBittorrent official forums

My apologies if this has been asked before, but I'm trying to find out if a torrent contains multiple files, can I, through the command line, only download one?  Can I also, at a later date, add individual files from the files that weren't chosen at the start?

I'd recommend taking a look at a library like libtorrent-rasterbar (qBittorrent uses this one), or https://github.com/rakshasa/libtorrent.
I realize C++ might be a bit hard to use, but for a simple script, it shouldn't be too much of a challenge.

bro did you find any solution to download a single file from a torrent via command line ?