As far as I can see, shell blocks are not supported yet, are they?

In RStudio, I can execute 

``````
```{bash}
echo foo
```
``````

and it returns `foo`. However, the rendered document doesn't contain the result of the evaluation, just the source code `echo foo`.

Are you planning to support shell blocks in the future? 

Plus, more generally, are you planning to support literate programming features like tangling?
2022-04-06T21:42:18Z
wuqui
closed
Shell blocks (and literate programming)
https://github.com/quarto-dev/quarto-cli/issues/558