The `kubectl` kubeconfig file is crucial for accessing and managing your Kubernetes clusters. It holds configurations like server addresses, namespaces, and authentication details. You can specify a kubeconfig file with the `--kubeconfig` flag or set the `KUBECONFIG` environment variable.
# View current context
kubectl config current-context
# Set a specific kubeconfig file
kubectl --kubeconfig=/path/to/kubeconfig config view
# Merge multiple kubeconfig files
KUBECONFIG=~/.kube/config:/path/to/other/kubeconfig kubectl config view --merge --flatten > ~/.kube/merged-config