Merge pull request #26574 from AliRezaTaleghani/patch-1

Update cheatsheet.md

Author: k8s-ci-robot

content/en/docs/reference/kubectl/cheatsheet.md

@@ -387,6 +387,9 @@ Examples using `-o=custom-columns`:
 # All images running in a cluster
 kubectl get pods -A -o=custom-columns='DATA:spec.containers[*].image'
 
+# All images running in namespace: default, grouped by Pod
+kubectl get pods --namespace default --output=custom-columns="NAME:.metadata.name,IMAGE:.spec.containers[*].image"
+
  # All images excluding "k8s.gcr.io/coredns:1.6.2"
 kubectl get pods -A -o=custom-columns='DATA:spec.containers[?(@.image!="k8s.gcr.io/coredns:1.6.2")].image'