OnWorks favicon

mdb_dump - Online in the Cloud

Run mdb_dump in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command mdb_dump that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



mdb_dump - LMDB environment export tool


mdb_dump [-V] [-f file] [-l] [-n] [-p] [-a | -s subdb] envpath


The mdb_dump utility reads a database and writes its contents to the standard output using
a portable flat-text format understood by the mdb_load(1) utility.


-V Write the library version number to the standard output, and exit.

-f file
Write to the specified file instead of to the standard output.

-l List the databases stored in the environment. Just the names will be listed, no
data will be output.

-n Dump an LMDB database which does not use subdirectories.

-p If characters in either the key or data items are printing characters (as defined
by isprint(3)), output them directly. This option permits users to use standard
text editors and tools to modify the contents of databases.

Note: different systems may have different notions about what characters are
considered printing characters, and databases dumped in this manner may be less
portable to external systems.

-a Dump all of the subdatabases in the environment.

-s subdb
Dump a specific subdatabase. If no database is specified, only the main database is


Exit status is zero if no errors occur. Errors result in a non-zero exit status and a
diagnostic message being written to standard error.

Dumping and reloading databases that use user-defined comparison functions will result in
new databases that use the default comparison functions. In this case it is quite likely
that the reloaded database will be damaged beyond repair permitting neither record storage
nor retrieval.

The only available workaround is to modify the source for the mdb_load(1) utility to load
the database using the correct comparison functions.

Use mdb_dump online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    A fast tunnel proxy that helps you
    bypass firewalls This is an application
    that can also be fetched from
    It ha...
    Download Shadowsocks
  • 2
    GLPI Themes
    GLPI Themes
    Download release at
    Color themes for GLPI 0.84 and 0.85 New
    Modifications for GLPI This is an
    application that c...
    Download GLPI Themes
  • 3
    SMPlayer is a free media player for
    Windows and Linux with built-in codecs
    that can also play YouTube videos. One
    of the most interesting features of
    Download SMPlayer
  • 4
    AAX to MP3
    AAX to MP3
    Usage: - Install the Audible Manager
    and open a file of your account. - Sign
    in into your audible account (in the
    application). Now the program can
    convert you...
    Download AAX to MP3
  • 5
    TestLink is a web based Test Management
    tool. The application provides Test
    specification, Test plans and execution,
    Reporting, Requirements specification
    and ...
    Download TestLink
  • 6
    XDXF - XML Dictionary Exchange Format
    XDXF - XML Dictionary Exchange Format
    XDXF is a project to unite all existing
    open dictionaries and provide both users
    and developers with universal XML-based
    format, convertible from and to other ...
    Download XDXF - XML Dictionary Exchange Format
  • 7
    Transmission Remote GUI
    Transmission Remote GUI
    Transmission Remote GUI is a feature
    rich cross platform front-end to
    remotely control a Transmission
    Bit-Torrent client daemon via its RPC
    protocol. Transmissi...
    Download Transmission Remote GUI
  • More »

Linux commands