Sorry if I was not specific enough.

I have the put the file (notecase.key) on the internal card, thus (from File Manager); Internal Memory/tmp/notecase.key

I need to move or copy it from there to:

/usr/share/doc/notecase/

No reference to 'notecase' appears at all in File Manager on the internal card, so I assume 'usr/share/doc/notecase/' must be on the internal 256mb memory.

Would this be it?

~$ mv /media/mmc2/tmp/notecase.key usr/share/doc/notepad

I'm familiar with the DOS command line so this all seems familiar enough to me. I note that on my N810, the removable media is mmc1, the internal card is mmc2.

Unfortunately the message I get is 'mv: cannot remove /usr/share/doc/notecase/notecase.key. No such file or directory.

I can navigate to both directories involved and list the contents. Using /usr/share/doc/notecase and not giving the filename for the moved file in the destination yields the same result. This all feels like when I was using MSDOS 3 many years ago!