NAME

cdb — constant database

SYNOPSIS

cdb -cds file

cdb [-n num] -q key file

DESCRIPTION

The cdb utility queries, dumps, analyzes and creates cdb (constant databases) files.

Create Mode

The create mode reads a series of encoded records from the standard input and creates a database (in cdb(5) format) on a temporary file and atomically rename it to file.

Dump Mode

The dump mode reads the given database and writes to the standard output each key and data.

Query Mode

The query mode reads the given database and writes to the standard output each found key.

Stats Mode

The stats mode reads the given database and writes to the standard output a summary with the number of records and the number of records at n distance from their hash.

Input/Output Format

When dealing with input (create mode) or output (dump mode) the records are encoded in the following way:

klen,dlen:key->data

OPTIONS

-c: Set create mode.
-d: Set dump mode.
-s: Set stats mode.
-n num: Limit the number of queries to n.
-q key: Set query mode, searching for the given key.

EXIT STATUS

The cdb utility exits 0 on success, and >0 if an error occurs.