$ curl -L https://istio.io/downloadIstio | ISTIO_VERSION=1.14.3 TARGET_ARCH=x86_64 sh -
Move to the Istio package directory. For example, if the package is istio-1.14.3:
$ cd istio-1.14.3
Add the istioctl client to your path
$ export PATH=$PWD/bin:$PATH
cd single-cluster
cd multi-cluster