The -u option is the final part of sharing.
The command was tested by Ubuntu client, firewall pfsense, raspberry PI 3 with raspbian.
I hope it can come in handy.
Hi here is what I did to upload:
As shown in the figure, I create a public folder for uploading and editing only. Then click on the copy link button. In the final part of the connection there is the reference string which, as from the previous post, is shown in the syntax of the curl command.
Hello and sorry for the delay.