Manual page for dbCatenate(1)
dbCatenate, dbCompare, dbCompress, dbCopy, dbDescribe, dbExpand -
hashed database utilities
DESCRIPTION
These commands, found in /usr/lib/database,
are utilities for managing hashed databases created with db(3).
- dbCatenate [-x] databases ...
-
Catenates the key/content pairs stored in the specified databases
to the standard output. The order is uninteresting,
being determined by a hash function.
-x catenates a hexadecimal ASCII representation of the information.
- dbCompare [-v][-V] from-database to-databases ...
-
Compares from-database with to-databases,
looking up each key found in from-database
in each of the to-databases,
and testing the associated contents for equality.
Normal operation is silent, indicating failure by a non-zero exit value.
-v prints a brief synopsis of each conflict and a brief summary.
-V additionally prints a hexadecimal ASCII representation
of missing keys and conflicting contents, as in dbCatenate.
- dbCompress [-p] databases ...
-
Compresses databases, reducing the amount of disk space they consume.
Compressed databases are readable only, and do not support writing or deletion.
- dbCopy [-s size] from-database to-databases ...
-
Copies key/content pairs from from-database,
creating to-databases with block size LEAFSIZE, as defined in db.h.
-s changes the block size to size.
- dbDescribe databases ...
-
Prints useful information about databases, including the block size,
the number of blocks, the number of key/content pairs,
the average number of key/content pairs per block,
and the average block usage as a percentage of total block space.
- dbExpand databases ...
-
Reverses the compression performed on databases by dbCompress.
After expansion, databases will again support writing and deletion.
DIAGNOSTICS
In the event of an error, these commands print a diagnostic message
to standard error, and exit with a non-zero value.
SEE ALSO
db(3)
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97
