CLI Tools

FDB provides CLI tools for archiving and retrieving data, administrative maintenance, and debugging.

All tools can be invoked through the fdb wrapper command or directly as fdb-<command>.

General Purpose Tools

Command	Description
fdb compare	Compare data between two FDBs or different data versions within one FDB.
fdb info	Show information about the FDB configuration and binaries.
fdb list	List the contents of FDB databases.
fdb purge	Purge duplicate entries and remove associated data.
fdb read	Read data from the FDB and write it to a file.
fdb schema	Print the schema used by an FDB instance or database.
fdb stats	Print aggregated information about FDB databases.
fdb where	Print the location of an FDB database.
fdb wipe	Delete FDB databases and the data they contain.
fdb write	Insert data into the FDB, creating databases as needed.
grib2fdb5	Insert GRIB data into the FDB (legacy tool).

Special Purpose Tools

Command	Description
fdb hide	Mask all entries in a database so they are permanently inaccessible, without destroying data.
fdb move	Lock and duplicate a database to another root.
fdb overlay	Overlay entries from one database onto another. Advanced use only.
fdb root	Find the on-disk location of specified databases.

Debug Tools

Command	Description
fdb dump	Dump the structural contents of the FDB (e.g. Table of Contents entries).
fdb dump-index	Dump the contents of a particular index file.
fdb dump-toc	Dump the structural contents of a TOC or subtoc file.
fdb hammer	Simulate the I/O load of a writing process within a forecast.
fdb patch	Re-archive data whilst modifying the class or expver of the database key.
fdb reconsolidate-toc	Repair databases with poorly written or fragmented TOC entries.