windows - installation

https://nodejs.org/

install nodejs LTS any version

open powershell and confirm nodejs and npm ( nodejs / network package manager )

nodejs ver

npm ver

https://geth.ethereum.org/downloads/

install geth

https://github.com/ethereum/go-ethereum/wiki/Installing-Geth

sudo add-apt-repository -y ppa:ethereum/ethereum

sudo apt-get update

sudo apt-get install ethereum

confirm instllation is done by

geth version

npm install -g ethereumjs-testrpc

testrpc

npm install -g truffle

truffle --version