First, download the latest mainnet compatible release for your platform from the releases page. If you are using OSX, download livepeer-darwin-amd64.tar.gz. If you are using Linux, download livepeer-linux-amd64.tar.gz.

To download the file using wget:

$ wget<RELEASE_VERSION>/livepeer-<YOUR PLATFORM>-amd64.tar.gz

After downloading the file, untar the archive and move the livepeer binary so that it is executable within your $PATH:

$ tar -zxvf livepeer-<YOUR_PLATFORM>-amd64.tar.gz
$ mv livepeer-<YOUR_PLATFORM>-amd64/livepeer /usr/local/bin
$ mv livepeer-<YOUR_PLATFORM>-amd64/livepeer_cli /usr/local/bin