Enable kubectl autocompletion and set k as alias to kubectl

# dnf install bash-completion

$ echo 'source <(kubectl completion bash)' >>~/.bashrc
$ kubectl completion bash >/etc/bash_completion.d/kubectl
$ echo 'alias k=kubectl' >>~/.bashrc
$ echo 'complete -F __start_kubectl k' >>~/.bashrc

More info: https://kubernetes.io/docs/tasks/tools/install-kubectl/#enable-kubectl-autocompletion