The command "kubens -" refers to a specific usage of the "kubens" command in Kubernetes. The "kubens" command is used to switch the current namespace context in Kubernetes.
The "-" flag is used after the command to indicate that the command should use the previous namespace that was set. It is a shortcut to switch back to the previous namespace without specifying its name explicitly.
In Kubernetes, namespaces are virtual clusters that provide isolation, scalability, and resource management within the cluster. The "kubens" command helps users manage different namespaces when working with multiple applications and teams within a cluster.