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Database connection and common options
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

--connect (jdbc-uri)::
  Specify JDBC connect string (required)

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

--driver (class-name)::
  Manually specify JDBC driver class to use

--connection-param-file (filename)::
  Optional properties file that provides connection parameters

--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
