Unable to set variable to command output

Describe the bug

I would like to be able to create a notebook without revealing any API keys, so I wanted to set a shell variable to avoid command output with API keys being visible. Unfortunately it doesn’t appear to be possible to use $(command) command substitution, or backticks. I even tried using read

Steps to reproduce the behavior

1. Try to set a variable using one of the following…

export KEY=$(command)

or…

export KEY=`command`

or…

command | read KEY; export KEY

Expected behavior

I should be able to use the $KEY environment variable in subsequent commands

Screenshots If applicable, add screenshots to help explain your problem.

System

• Kui version: recent (I couldn’t find the version in the UI anywhere, sorry)
• Operating system: OSX

[starpit]

This should be doable. We’ll take a shot at it for the upcoming 10.4.0 release.

[oskapt]

Please reopen this. It’s still an issue.

I am keen on using Kui with trainings that I do for SUSE/Rancher. It would make it easy for students to follow along and have the notebooks use variables that automatically customize themselves for each student’s environment:

export IP=$(kubectl get service/traefik -n kube-system -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
export PORT=$(kubectl get service/demo -o jsonpath='{.spec.ports[0].nodePort}')
curl -I $IP:$PORT

Every time I try this, I run into this limitation around command substitution. It would be excellent if Kui supported it so that notebooks could be adaptable, allowing students to focus on learning instead of focusing on figuring out what IP was assigned to the ingress controller in their specific distribution of Kubernetes.