optional note + examples

bit-wallet/bit-send

@@ -9,11 +9,21 @@ program
   .option('-c, --config [file]', 'Wallet config filename')
   .option('-h, --host [host]', 'Bitcore Wallet Service URL (eg: http://localhost:3001/copay/api')
   .option('-v, --verbose', 'be verbose')
-  .usage('[options] <address> <amount> <message>')
-  .parse(process.argv);
+  .usage('[options] <address> <amount> [note]')
+  .description('Create a proposal for sending bitcoins to a destination address.\n  The amount can be specified in bit, btc or sat (the default).');
+
+program.on('--help', function(){
+  console.log('  Examples:');
+  console.log('');
+  console.log('    $ bit-send n2HRFgtoihgAhx1qAEXcdBMjoMvAx7AcDc 500bit');
+  console.log('    $ bit-send mgWeRvUC6d1LRPKtdDbvYEpaUEmApS4XrY 0.2btc "dinner with friends"');
+  console.log('');
+});
+
+program.parse(process.argv);
 
 var args = program.args;
-if (!args[0] || !args[1] || !args[2])
+if (!args[0] || !args[1])
   program.help();
 
 var address = args[0];
@@ -23,14 +33,14 @@ try {
 } catch (ex) {
   utils.die(ex);
 }
-var message = args[2];
+var note = args[2];
 
 var client = utils.getClient(program);
 
 client.sendTxProposal({
   toAddress: address,
   amount: amount,
-  message: message
+  message: note
 }, function(err, x) {
   utils.die(err);
   console.log(' * Tx created: ID %s [%s] RequiredSignatures:',