Go to this link to get your desired version of the OC client tool. I have choosen the latest version available in July, 2020.
wget https://github.com/openshift/okd/releases/download/4.5.0-0.okd-2020-07-14-153706-ga/openshift-client-linux-4.5.0-0.okd-2020-07-14-153706-ga.tar.gz
tar -xvf openshift-client-linux-4.5.0-0.okd-2020-07-14-153706-ga.tar.gz
sudo mv oc kubectl /usr/local/bin/
oc version
** You may need to add the installation path in your bash profile
Maybe try a little bit more newer version?
https://mirror.openshift.com/pub/openshift-v4/clients/ocp/4.17.8/openshift-client-linux-4.17.8.tar.gz