How to start a pod in command line without deployment in kubernetes?

kubectl run nginx --image=nginx --port=80 --restart=Never

--restart=Always: The restart policy for this Pod. Legal values [Always, OnFailure, Never]. If set to Always
a deployment is created, if set to OnFailure a job is created, if set to Never, a regular pod is created. For the latter two --replicas must be 1. Default Always […]

see official document https://kubernetes.io/docs/user-guide/kubectl-conventions/#generators