[O] passing string to sh source code block

[Daniel Herzig]

Hi!

I am trying to pass a path to an org-source-codeblock using the :var tag
in the header:

#+BEGIN_SRC sh :var directory="/x/y/z"
cd directory
ls
#+END_SRC

The output of the ls command shows that I obviously stay in the location
of my .org file (not "/x/y/z") -- is there a way to pass the path to the source
codeblock, without having to enter the path inside the block?

Any hint appreciated, thanks in advance,

cheers,
Daniel