gistfile1.txt

~/work/git/hbase (HBASE-2279) 
[00:06] $ ./bin/hbase shell
HBase Shell; enter 'help<RETURN>' for list of supported commands.
Type "exit<RETURN>" to leave the HBase Shell
Version: 0.21.0-SNAPSHOT, rUnknown, Wed Mar  3 13:39:18 EST 2010
hbase(main):001:0> help

There are few groups of commands in Hbase

Use help 'group_name' (e.g. help 'general') to get help on all commands in a group
Use help 'command' (e.g. help 'get') to get help on a specific command

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Here is the list of groups with their commands:

  GENERAL HBASE SHELL COMMANDS: 
    group name: general
    commands: status, version

  TABLES MANAGEMENT COMMANDS: 
    group name: ddl
    commands: alter, create, describe, disable, drop, enable, exists, list

  DATA MANIPULATION COMMANDS: 
    group name: dml
    commands: count, delete, deleteall, get, incr, put, scan, truncate

  HBASE SURGERY TOOLS: 
    group name: tools
    commands: close_region, compact, disable_region, enable_region, flush, major_compact, shutdown, split, zk, zk_dump


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GENERAL NOTES:
        Quote all names in the hbase shell such as table and column names.  Don't
        forget commas delimit command parameters.  Type <RETURN> after entering a
        command to run it.  Dictionaries of configuration used in the creation and
        alteration of tables are ruby Hashes. They look like this:

          {'key1' => 'value1', 'key2' => 'value2', ...}

        They are opened and closed with curley-braces.  Key/values are delimited by
        the '=>' character combination.  Usually keys are predefined constants such as
        NAME, VERSIONS, COMPRESSION, etc.  Constants do not need to be quoted.  Type
        'Object.constants' to see a (messy) list of all constants in the environment.

        In case you are using binary keys or values and need to enter them into the
        shell then use double-quotes to make use of hexadecimal for example:

          hbase> get 't1', "key\x03\x3f\xcd"
          hbase> get 't1', "key\003\023\011"
          hbase> put 't1', "test\xef\xff", 'f1:', "\x01\x33\x40"

        Using the double-quote notation you can directly use the values output by the
        shell for example during a "scan" call.

        This HBase shell is the JRuby IRB with the above HBase-specific commands added.
        For more on the HBase Shell, see http://wiki.apache.org/hadoop/Hbase/Shell

hbase(main):002:0>