We know that computational scientists love using Jupyter. That’s why cjr has commands to start and stop Jupyter notebooks or Jupyter lab. Jupyter comes preinstalled in the fedora-sc stack, so we can start it using the command
$ cjr jupyter:start --here --stack=fedora-sc
After a few seconds, Jupyter lab will open in your default browser. The jupyter command works just like the shell command. We added the flag --here so that we can view and modify the files in the current directory from Jupyter.
We can view all running jupyter servers that were started with cjr by running the command
$ cjr jupyter:ls
To stop jupyter you can run the stop command from the same directory where you originally started jupyter:
$ cjr jupyter:stop --here
Alternatively you can run cjr jupyter:stop DIR where DIR is the directory where you started jupyter. If you are running jupyter servers in multiple directories, you can stop them all at once using cjr jupyter:stop --all.
By default cjr runs Jupyter lab. You can change the default to Jupyter notebooks using the command
$ cjr config:set --jupyter-command="jupyter notebook"
and you can switch back to Jupyter lab with the command
$ cjr config:set --jupyter-command="jupyter lab"