Sometimes you will want to make configuration changes to your Workbench-launched Jupyter sessions.
Jupyter Notebook and JupyterLab issues can't be supported by Posit because Jupyter is open-source software that has a community supporting it at https://discourse.jupyter.org/
Having said that, sometimes you will want to make changes that aren't documented in the Workbench documentation, but the online advice for Jupyter doesn't work.
For example - say you are using Jupyter and would like the terminal that can be opened to be bash instead of sh.
Within /etc/rstudio/jupyter.conf, you can use the two configuration directives lab-args or notebook-args to make this change.
For notebooks, you would add a line that looks like this:
notebook-args=--no-browser --allow-root --ip=0.0.0.0 --NotebookApp.terminado_settings='{"shell_command":["/usr/bin/bash"]}'
For JupyterLab, you would add a line that looks like this:
lab-args=--no-browser --allow-root --ip=0.0.0.0 --ServerApp.terminado_settings='{"shell_command":["/usr/bin/bash"]}'
Once this is complete, please restart the server and the launcher - users may need to log out of their sessions as well.
$ sudo rstudio-launcher restart
$ sudo rstudio-server restart