How to files:scan specific file only added manually?

I manually copy some files and want to scan specific file using files:scan command,
I know it has --unscaned flag but that doesn’t seem to work.

Why? If you use e.g. WebDAV instead of cp, sftp, scp, … there is no problem.

I think that is not possible.
You can scan perhaps with user_id and –unscanned

https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/occ_command.html

When I use --unscanned I dont get the newly copied file.

+---------+-------+--------------+
| Folders | Files | Elapsed time |
+---------+-------+--------------+
| 0       | 0     | 00:00:01     |
+---------+-------+--------------+

Why? Why can you not use e.g. WebDAV or a Nextcloud client?

Can you scan for a user id? Perhaps it works.

well,though I sometimes manually copy files. I also have a shell script that reads readme.md file for youtube video links, which then convert to m4a and then I run the files:scan . what would be commandline approach to use webdav ? as of not I do not have manual step of copying an audio file.