code: function run(filepath) {
  	var startTime = process.hrtime();
  	var uniqueCommand = command.replace('$path', filepath);
  	if (!argv.silent) {
  		console.log('>', uniqueCommand);
  	}
  	execshell(uniqueCommand);
  	if (!argv.silent) {
  		console.log('Finished in', prettyHrtime(process.hrtime(startTime)));
  	}
  }
docs: Function to run when something changes