truffle console demo

gistfile1.txt

// get accounts
web3.eth.accounts

// get reference to deployed contract
var metaCoin;
MetaCoin.deployed().then(function(deployed) {metaCoin = deployed;});

// get balance of account 0
metaCoin.getBalance.call(web3.eth.accounts[0])

// send coins
var account0 = web3.eth.accounts[0];
var account1 = web3.eth.accounts[1];
metaCoin.sendCoin(account1, 1000, {from: account0});