Describe the bug
az command this line from the install.md

az aks get-versions --location $location --query "orchestrators[-1].orchestratorVersion" -o tsv

To Reproduce

1. Go to cloudshell
2. paste the command

   location="westus2"
   kubernetesVersion=$(az aks get-versions --location $location --query "orchestrators[-1].orchestratorVersion" -o tsv)
   echo $kubernetesVersion
   

   Notive the variable $kubernetesVersion is empty.

Solution

Replace --queryparameter like so "values[?isDefault==`true`].version | [0]"

kubernetesVersion=$(az aks get-versions --location $location --query "values[?isDefault==\`true\`].version | [0]" -o tsv)