# Show only modified options

c.NotebookApp.browser = u'chromium-browser'
c.NotebookApp.terminado_settings = { "shell_command": "/usr/bin/env bash" }

# Show only modified options

c.NotebookApp.browser = u'chromium-browser'
#c.NotebookApp.terminado_settings = { "shell_command": ["/usr/bin/env", "bash"] }

Update jupyter_notebook_config.py