# create namespace
$ kubectl create namespace [namespace-name]

# set namespace to default
$ kubectl config set-context --current --namespace=[namespace-name]

# show nodes
$ kubectl get nodes -o wide

# show pods
$ kubectl get pods

# show services
$ kubectl get svc -o wide

# show configmaps
$ kubectl get configmap

# show pod description 
$ kubectl describe pod [pod-name]

# show pod logs
$ kubectl logs [pod-name] --follow

# apply yaml file or folder
$ kubectl apply -f k8s/file.yaml

# destroy yaml file or folder
$ kubectl destroy -f k8s/

# to watch all pods running
$ watch -n1 kubectl get pods