kubecontext.sh

kubecontext=$(kubectl config view -o jsonpath='{.contexts[*].name}')        
oldIFS=$IFS
IFS=$' '
choices=( $kubecontext )
IFS=$oldIFS
PS3="Please select your kube context: "
select answer in "${choices[@]}"; do
  for item in "${choices[@]}"; do
    if [[ $item == $answer ]]; then
      break 2
    fi
  done
done
kubectl config use-context $answer