Ok, as you seem to have some trouble understanding links I'll start with a quick explanation:
Usually (depending on disk format) a file consists of two parts:
- On part holds the actual content of the file. It is anywhere on the disk.
- The other part is what you can see with any file explorer. This part does not hold any content but the location of the content on the disk. So this part is something like an entry-point to the actual file, which is anywhere else on your disk. (example: this is anyhow like an URL: a piece of information that points to the real content)
This only works inside one file system: There is no chance of having the second part pointing to another hard drive/partition or anything similar.
This is the reason why hard links can only be set inside one partition/hard drive.
What are hard links?
As explained above a file consists of two parts. A hard link is just another second part: The content stays always the same; but you have two entry points. So two files in your file explorer point to the exact same location on your disk. This is the reason why there is no "original file" anymore; they both are the same file. And hard-links can't be set to directories. Hard links are anyhow outdated. There are sometimes situations where you have to use those but they have some disadvantages that soft links don't have.
What are soft links?
Soft links are also called symbolic links or sym-links. They can be set to directories and even other partitions/hard drives! These are files with one purpose: Pointing to another file. But unlike hard links they are pointing not to the "content part" of the file but to the entry point. So the original file is still the unique original file but there is another file that points to it. This is the reason why soft links can be broken: they can point to a file that doesn't exist (anymore).
So the thing that you are looking for are soft links. You have two directories named
/SymlinkedDirectory. You want to move
/SymlinkedDirectory. (It's always a good idea to stop the torrent before you go on).
/SymlinkedDirectory and rename it as you like:
mv -i /Directory/RealTorrentFile /SymlinkedDirectory/ChangedNameTorrentFileOrAnyOtherName
Then create a soft link in the origianl directory pointing to the new directory with the renamed file:
ln -s /SymlinkedDirectory/ChangedNameTorrentFileOrAnyOtherName /Directory/RealTorrentFile
Be aware that
RealTorrentFile has to have the same name as the original torrent file. Otherwise your torrent would be very surprised that there is another file :)
So that's already it!
I hope everything got a little clearer about soft and hard links. If you have any further questions feel free to ask!