db_dump [-dN] [-f output] db_file db_dump [-p] [-f output] [-h home] db_file db_dump185 [-p] [-f output] db_file
The db_dump utility reads the database file db_file and writes it to the standard output using a portable flat-text format understood by the db_load utility. The argument db_file must be a file produced using the Berkeley DB library functions.
The db_dump185 utility is similar to the db_dump utility except that it reads databases in the format used by Berkeley DB versions 1.85 and 1.86.
The options are as follows:
Note, different systems may have different notions as to what characters are considered printing characters, and databases dumped in this manner may be less portable to external systems.
Dumping and reloading hash databases that use user-defined hash functions will result in new databases that use the default hash function. While using the default hash function may not be optimal for the new database, it will continue to work correctly.
Dumping and reloading btree databases that use user-defined prefix or comparison functions will result in new databases that use the default prefix and comparison functions. In this case, it is quite likely that the database will be damaged beyond repair permitting neither record storage or retrieval.
The only available workaround for either case is to modify the sources for the db_load utility to load the database using the correct hash, prefix and comparison functions.
The db_dump185 utility may not be available on your system as it is not always built when the Berkeley DB libraries and utilities are installed. If you are unable to find it, see your system administrator for further information.
The db_dump and db_dump185 utility output formats are documented in the Dump Output Formats section of the Reference Guide.
The db_dump utility exits 0 on success, and >0 if an error occurs.
The db_dump185 utility exits 0 on success, and >0 if an error occurs.