mirror of
https://codeberg.org/anoncontributorxmr/monero.git
synced 2024-11-30 14:53:27 +01:00
76 lines
2.1 KiB
Groff
76 lines
2.1 KiB
Groff
|
.TH MDB_DUMP 1 "2014/06/20" "LMDB 0.9.14"
|
||
|
|
.\" Copyright 2014 Howard Chu, Symas Corp. All Rights Reserved.
|
||
|
|
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
|
||
|
|
.SH NAME
|
||
|
|
mdb_dump \- LMDB environment export tool
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.B mdb_dump
|
||
|
|
.BR \ envpath
|
||
|
|
[\c
|
||
|
|
.BR \-V ]
|
||
|
|
[\c
|
||
|
|
.BI \-f \ file\fR]
|
||
|
|
[\c
|
||
|
|
.BR \-l ]
|
||
|
|
[\c
|
||
|
|
.BR \-n ]
|
||
|
|
[\c
|
||
|
|
.BR \-p ]
|
||
|
|
[\c
|
||
|
|
.BR \-a \ |
|
||
|
|
.BI \-s \ subdb\fR]
|
||
|
|
.SH DESCRIPTION
|
||
|
|
The
|
||
|
|
.B mdb_dump
|
||
|
|
utility reads a database and writes its contents to the
|
||
|
|
standard output using a portable flat-text format
|
||
|
|
understood by the
|
||
|
|
.BR mdb_load (1)
|
||
|
|
utility.
|
||
|
|
.SH OPTIONS
|
||
|
|
.TP
|
||
|
|
.BR \-V
|
||
|
|
Write the library version number to the standard output, and exit.
|
||
|
|
.TP
|
||
|
|
.BR \-f \ file
|
||
|
|
Write to the specified file instead of to the standard output.
|
||
|
|
.TP
|
||
|
|
.BR \-l
|
||
|
|
List the databases stored in the environment. Just the
|
||
|
|
names will be listed, no data will be output.
|
||
|
|
.TP
|
||
|
|
.BR \-n
|
||
|
|
Dump an LMDB database which does not use subdirectories.
|
||
|
|
.TP
|
||
|
|
.BR \-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.
|
||
|
|
.TP
|
||
|
|
.BR \-a
|
||
|
|
Dump all of the subdatabases in the environment.
|
||
|
|
.TP
|
||
|
|
.BR \-s \ subdb
|
||
|
|
Dump a specific subdatabase. If no database is specified, only the main database is dumped.
|
||
|
|
.SH 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 and reloading databases that use user-defined comparison functions
|
||
|
|
will result in new databases that use the default comparison functions.
|
||
|
|
\fBIn this case it is quite likely that the reloaded database will be
|
||
|
|
damaged beyond repair permitting neither record storage nor retrieval.\fP
|
||
|
|
|
||
|
|
The only available workaround is to modify the source for the
|
||
|
|
.BR mdb_load (1)
|
||
|
|
utility to load the database using the correct comparison functions.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR mdb_load (1)
|
||
|
|
.SH AUTHOR
|
||
|
|
Howard Chu of Symas Corporation <http://www.symas.com>
|