src/docs/user/help.txt

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+sqoop-help+
------------

Purpose
~~~~~~~

List tools available in Sqoop and explain their usage.

Syntax
~~~~~~

----
$ sqoop help [tool-name]
$ sqoop-help [tool-name]
----

If no tool name is provided (for example, the user runs +sqoop help+), then
the available tools are listed. With a tool name, the usage
instructions for that specific tool are presented on the console.

Example Invocations
~~~~~~~~~~~~~~~~~~~

List available tools:

----
$ sqoop help
usage: sqoop COMMAND [ARGS]

Available commands:
  codegen            Generate code to interact with database records
  create-hive-table  Import a table definition into Hive
  eval               Evaluate a SQL statement and display the results
  export             Export an HDFS directory to a database table

...

See 'sqoop help COMMAND' for information on a specific command.
----

Display usage instructions for the +import+ tool:

----
$ bin/sqoop help import
usage: sqoop import [GENERIC-ARGS] [TOOL-ARGS]

Common arguments:
   --connect <jdbc-uri>     Specify JDBC connect string
   --connection-manager <class-name>     Specify connection manager class to use
   --driver <class-name>    Manually specify JDBC driver class to use
   --hadoop-mapred-home <dir>            Override $HADOOP_MAPRED_HOME
   --help                   Print usage instructions
   --password-file          Set path for file containing authentication password
   -P                       Read password from console
   --password <password>    Set authentication password
   --username <username>    Set authentication username
   --verbose                Print more information while working
   --hadoop-home <dir>      Deprecated. Override $HADOOP_HOME

Import control arguments:
   --as-avrodatafile             Imports data to Avro Data Files
   --as-sequencefile             Imports data to SequenceFiles
   --as-textfile                 Imports data as plain text (default)
   --as-parquetfile              Imports data to Parquet Data Files
...
----