Geth can be installed using the following commands on Ubuntu systems:

sudo apt-get install software-properties-common
sudo add-apt-repository -y ppa:ethereum/ethereum
sudo apt-get update
sudo apt-get install ethereum

After installation, run geth account new to create an account on your node. Various options and commands can be checked by using the geth --help command.

On Windows-based systems, it is much easier to install Geth by simply downloading the latest version from https://geth.ethereum.org/downloads/ and then downloading the required zip file, post-extracting the zip file, and opening the geth.exe program.