String confDir) {
String[] commandArgs = getCommand(command, confDir);
File cwd = new File(".");
HashMap<String, String> env = new HashMap<String, String>();
env.put("HADOOP_CONF_DIR", confDir);
ShellCommandExecutor executor
= new ShellCommandExecutor(commandArgs, cwd, env);
LOG.info(executor.toString());
return executor;
}