I have made a contract which generates a public event on blockchain that will notify client about a transaction. To listen to the event I have written following snippet in geth console:

var event = token.CoinTransfer({}, '', function(error, result){ if (!error) console.log("Coin transfer: " + result.args.amount + " tokens were sent. Balances now are as following: \n Sender:\t" + result.args.sender + " \t" + token.coinBalanceOf.call(result.args.sender) + " tokens \n Receiver:\t" + result.args.receiver + " \t" + token.coinBalanceOf.call(result.args.receiver) + " tokens" ) });

Now instead of "console.log" I want these transaction to be stored in a text file "TransactionHistory.txt". How can we do this? Is there a better way than listening to event, to maintain transaction logs?