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MDB_DUMP(1) General Commands Manual MDB_DUMP(1) NAME mdb_dump - LMDB environment export tool SYNOPSIS mdb_dump [-V] [-f file] [-l] [-n] [-p] [-a | -s subdb] envpath DESCRIPTION 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. OPTIONS -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 char- acters (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 dumped. DIAGNOSTICS 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 databases that use user-defined comparison functions will out- put records with the ordering imposed by those comparison functions. If mdb_load is invoked without including the -a option when reloading those records, the new databases will likely be damaged beyond repair, permitting neither record storage nor retrieval. SEE ALSO mdb_load(1) AUTHOR Howard Chu of Symas Corporation <http://www.symas.com> LMDB 0.9.17 2015/09/30 MDB_DUMP(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | DIAGNOSTICS | SEE ALSO | AUTHOR
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