I have an org file with notes about how to setup my project. One of the notes has some shell scripts, like this:

#+begin_src sh :dir ~/Workspace/MyProject :session cmake-setup
cmake -B build-debug -S . -G Ninja \

I can hit C-c C-c there and execute the shell command. But the problem is that Emacs hangs for 5-10 seconds while that command runs. When it's done I can switch to the cmake-setup buffer and see the output. But I'd like to switch to the shell buffer right away and see the progress. This will be essential when commands take more than a few seconds.

I found ob-async and added the :async header to the source block. It stops freezing emacs, but it ignores the :session header and puts the huge amount of output into my org file.

Is there a way to make my code block execute asynchronously and keep it running in the session?

  • 2
    Not sure, but doesn't the ampersand at the end of your shell command help?
    – Arktik
    Commented Mar 20, 2023 at 16:37
  • 1
    You can set the :results silent for the block if you don't want to see a huge output.
    – Arktik
    Commented Mar 20, 2023 at 16:39
  • Oh my, I'm an idiot. Haha. Yes, the & did it. Thank you.
    – Rob N
    Commented Mar 20, 2023 at 16:48


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