////
  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
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////

--connection-manager (class-name)::
  Specify connection manager class name (optional)

--hadoop-mapred-home (dir)::
  Override $HADOOP_MAPRED_HOME

--help::
  Print usage instructions

--password-file (file containing the password)::
  Set authentication password in a file on the users home
  directory with 400 permissions
  (Note: This is very secure and a preferred way of entering credentials)

--password (password)::
  Set authentication password
  (Note: This is very insecure. You should use -P instead.)

-P::
  Prompt for user password

--username (username)::
  Set authentication username

--verbose::
  Print more information while working

--hadoop-home (dir)::
  Deprecated. Override $HADOOP_HOME