On a Linux system, curl can be used to download the eksctl tar archive.

curl --location --remote-name "https://github.com/eksctl-io/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz"

And then TAR can be used to extract the TAR archive to /usr/local/bin.

tar -zxpf eksctl_$(uname -s)_amd64.tar.gz --directory /usr/local/bin

The eksctl version command can be used to list the version of eksctl and kubectl.

~]$ /usr/local/bin/eksctl info
eksctl version: 0.164.0
kubectl version: v1.23.6
OS: linux