how do I use :var arguments in sh code for ob-shell in org-mode

Question

I want to pass variables/arguments to a shell script in org-mode babel code-block by using the :var tag. Instead of reading the value of the variable, shell is just getting the literal x, which is empty (so ${x}="").

I would like the bash code block below in org-mode / org-babel to output "bar". How do I do that?

#+name: foo :var x=bar
#+begin_src bash 
echo x
#+end_src

Answer 1

I don't think you can put in the #+name.

This should work:

#+name: foo 
#+begin_src bash :var x="bar"  
echo $x
#+end_src