add document on kubectl's behavior regarding initializers (#5505)

docs/user-guide/kubectl-cheatsheet.md

@@ -104,6 +104,7 @@ $ kubectl get services                          # List all services in the names
 $ kubectl get pods --all-namespaces             # List all pods in all namespaces
 $ kubectl get pods -o wide                      # List all pods in the namespace, with more details
 $ kubectl get deployment my-dep                 # List a particular deployment
+$ kubectl get pods --include-uninitialized      # List all pods in the namespace, including uninitialized ones
 
 # Describe commands with verbose output
 $ kubectl describe nodes my-node
@@ -193,10 +194,11 @@ $ kubectl scale --replicas=5 rc/foo rc/bar rc/baz                   # Scale mult
 ## Deleting Resources
 
 ```console
-$ kubectl delete -f ./pod.json                      # Delete a pod using the type and name specified in pod.json
-$ kubectl delete pod,service baz foo                # Delete pods and services with same names "baz" and "foo"
-$ kubectl delete pods,services -l name=myLabel      # Delete pods and services with label name=myLabel
-$ kubectl -n my-ns delete po,svc --all              # Delete all pods and services in namespace my-ns
+$ kubectl delete -f ./pod.json                                              # Delete a pod using the type and name specified in pod.json
+$ kubectl delete pod,service baz foo                                        # Delete pods and services with same names "baz" and "foo"
+$ kubectl delete pods,services -l name=myLabel                              # Delete pods and services with label name=myLabel
+$ kubectl delete pods,services -l name=myLabel --include-uninitialized      # Delete pods and services, including uninitialized ones, with label name=myLabel
+$ kubectl -n my-ns delete po,svc --all                                      # Delete all pods and services, including uninitialized ones, in namespace my-ns,
 ```
 
 ## Interacting with running Pods

docs/user-guide/kubectl-overview.md

@@ -238,9 +238,12 @@ $ kubectl get replicationcontroller <rc-name>
 
 // List all replication controllers and services together in plain-text output format.
 $ kubectl get rc,services
+
+// List all daemon sets, including uninitialized ones, in plain-text output format.
+$ kubectl get ds --include-uninitialized
 ```
 
-`kubectl describe` - Display detailed state of one or more resources.
+`kubectl describe` - Display detailed state of one or more resources, including the uninitialized ones by default.
 
 ```shell
 // Display the details of the node with name <node-name>.
@@ -252,6 +255,9 @@ $ kubectl describe pods/<pod-name>
 // Display the details of all the pods that are managed by the replication controller named <rc-name>.
 // Remember: Any pods that are created by the replication controller get prefixed with the name of the replication controller.
 $ kubectl describe pods <rc-name>
+
+// Describe all pods, not including uninitialized ones
+$ kubectl describe pods --include-uninitialized=false
 ```
 
 `kubectl delete` - Delete resources either from a file, stdin, or specifying label selectors, names, resource selectors, or resources.
@@ -263,7 +269,10 @@ $ kubectl delete -f pod.yaml
 // Delete all the pods and services that have the label name=<label-name>.
 $ kubectl delete pods,services -l name=<label-name>
 
-// Delete all pods.
+// Delete all the pods and services that have the label name=<label-name>, including uninitialized ones.
+$ kubectl delete pods,services -l name=<label-name> --include-uninitialized
+
+// Delete all pods, including uninitialized ones.
 $ kubectl delete pods --all
 ```