We’ve just been refreshing rclone’s bash completion so it can complete remote paths as well.
This works well on linux, though more testing would be good.
We haven’t found any macOS testers though - any volunteers? (@jrock ?)
See this issue for the beta: https://github.com/ncw/rclone/issues/1529#issuecomment-461197899
I’d like to merge this for the v1.46 release for the weekend so any testing before then is much appreciated!