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How to install/upgrade/downgrade kubectl in Linux (Ubuntu)?

To install the latest version: 

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
curl -LO "https://dl.k8s.io/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl.sha256"
echo "$(<kubectl.sha256) kubectl" | sha256sum --check
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
kubectl version --client
kubectl version
To install a specific (v1.19.0) version: 
curl -LO "https://dl.k8s.io/release/v1.19.0/bin/linux/amd64/kubectl"
curl -LO "https://dl.k8s.io/v1.19.0/bin/linux/amd64/kubectl.sha256"
echo "$(<kubectl.sha256) kubectl" | sha256sum --check
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
kubectl version --client
kubectl version

  
  

    This will install kubectl client. Run minikube start to install kubectl server.
  









































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