Installation in ubuntu
For installing helm your kubernetes cluster must be in running state and all the master and worker nodes must be in ready state.
Once the cluster is in ready state execute the below command to download tar file
Now untar the contents and move them to /usr/local/bin execute the below commands.
tar -zxf helm-v3.2.4-linux-amd64.tar.gz sudo mv linux-amd64/helm /usr/local/bin/
Once it is done simply execute helm to check whether it is successfully installed or not.