This type of shit happens if you intentionally mess up your own system (or use Manjaro). pacman requires extra confirmation (instructions only found in its man page) before even allowing you to delete bash (base requires it). bash has also never been replaced, and even if you deleted it, it would still be loaded in RAM. Even still, if you deleted it and immediately rebooted, it would be a quick fix for anyone familiar with the distribution they’re using, and would not require reinstalling the whole thing.

Since lowercase y as an option to uppercase S already exists to update the database, --noconfirm exists to continue without user confirmation.

Yes. -Syyu is for “Sync (repository action), database update (forced), upgrade packages”, in that order (though the flags don’t have to be). Doubling a lowercase character like yy or uu is to force the operation. yy in particular shouldn’t be needed, as it only overrides the “is your database recent” check. Unless you’re updating more than every 5 minutes, using a single y is perfectly fine.

Discord is one of the greedy AI companies training on your data