Msg#: 3120754 posted 2:01 am on Oct 15, 2006 (gmt 0)
You've got the terminology a bit backwards.
ln -s is used to create symbolic links. Just plain ln creates "hard links". Some people refer to symbolic links as "soft links".
A hard link is simply an additional directory entry pointing to the same data. They're a bit of a pain from a bookkeeping perspective, as it's impossible to easily determine where they point. You can only tell how MANY of them there are pointing to the same data. But they're a bit faster than symbolic links. And when you delete a file via a hard link, the file and all the links go away. Not so with a symbolic link.
The -S option, as pointed-out above, has nothing to do with hard or soft links. It deals with adding a suffix to backup files.