Questions[symbolic-link](server)

I am trying to use symbolic links. I did some reading and found the following commands:

Creation -> ln -s {/path/to/file-name} {link-name}
Update -> ln -sfn {/path/to/file-name} {link-name}
Deletion -> rm {link-name}

Creations and deletions work fine. But updates do not work. After performing this command, the symlink becomes invalid.

I have read here and there that it is not possible to update/override a symlink. So there is contradictory information on the net. Who is right? If a symlink can be updated/overridden, how can I achieve this?

Update

Here is my directory structure:

~/scripts/test/
~/scripts/test/remote_loc/
~/scripts/test/remote_loc/site1/
~/scripts/test/remote_loc/site1/stuff1.txt
~/scripts/test/remote_loc/site2/
~/scripts/test/remote_loc/site2/stuff2.txt
~/scripts/test/remote_loc/site2/
~/scripts/test/remote_loc/site3/stuff3.txt

From ~/scripts/test/, when I perform:

ln -s /remote_loc/site1 test_link

a test_link is created, and I can ls -l it, but it seems broken (contrary to what I said above in my question).

How can I perform a multiple directory level link?

I have a directory that contains symbolic links to other directories located on different media on my system:

/opt/lun1/2011
/opt/lun1/2010
/opt/lun2/2009
/opt/lun2/2008
/opt/lun3/2007

But the symbolic links show up as:

/files/2011
/files/2010
/files/2009
/files/2008
/files/2007

How can I perform an rsync that follows the symbolic links?

e.g.:

rsync -XXX /files/ user@server:/files/

I'm using

ln -f -s /var/www/html/releases/build1390 app-current

to update symbolic link "app-current" with a new destination. However, this doesn't work, the link "app-current" keeps it original destination, however, I don't get any errors...

I'd rather not remove the link and recreate it, just update the target of an existing link. Is that possible?

Given this example:

mkdir a
ln -s a b
ln -s b c
ln -s c d

If I execute:

ls -l d

It will show:

d -> c

Is there a way for ls or any other linux command to show d -> c -> b -> a instead?

Windows Vista added the ability to create symbolic links to files and directories. How do I create a symbolic link and what are the current consumer and server versions of Windows that support it?