db_verify(1) BSD General Commands Manual db_verify(1)
NAME
db_verify
SYNOPSIS
db_verify [-NoqV] [-h home] [-P password] file ...
DESCRIPTION
The db_verify utility verifies the structure of one or more files and the
databases they contain.
The options are as follows:
-h
Specify a home directory for the database environment; by default, the
current working directory is used.
-o
Skip the database checks for btree and duplicate sort order and for
hashing.
If the file being verified contains databases with non-default compar-
ison or hashing configurations, calling the db_verify utility without
the -o flag will usually return failure. The -o flag causes db_verify
to ignore database sort or hash ordering and allows db_verify to be
used on these files. To fully verify these files, verify them explic-
itly using the DB->verify method, after configuring the correct com-
parison or hashing functions.
-N
Do not acquire shared region mutexes while running. Other problems,
such as potentially fatal errors in Berkeley DB, will be ignored as
well. This option is intended only for debugging errors, and should
not be used under any other circumstances.
-P
Specify an environment password. Although Berkeley DB utilities over-
write password strings as soon as possible, be aware there may be a
window of vulnerability on systems where unprivileged users can see
command-line arguments or where utilities are not able to overwrite
the memory containing the command-line arguments.
-q
Suppress the printing of any error descriptions, simply exit success
or failure.
-V
Write the library version number to the standard output, and exit.
The db_verify utility does not perform any locking, even in Berkeley DB
environments that are configured with a locking subsystem. As such, it
should only be used on files that are not being modified by another
thread of control.
The db_verify utility may be used with a Berkeley DB environment (as
described for the -h option, the environment variable DB_HOME, or because
the utility was run in a directory containing a Berkeley DB environment).
In order to avoid environment corruption when using a Berkeley DB envi-
ronment, db_verify should always be given the chance to detach from the
environment and exit gracefully. To cause db_verify to release all envi-
ronment resources and exit cleanly, send it an interrupt signal (SIGINT).
The db_verify utility exits 0 on success, and >0 if an error occurs.
ENVIRONMENT
DB_HOME If the -h option is not specified and the environment variable
DB_HOME is set, it is used as the path of the database home, as
described in DB_ENV->open.
SEE ALSO
db_archive(1), db_checkpoint(1), db_deadlock(1), db_dump(1), db_load(1),
db_printlog(1), db_recover(1), db_stat(1), db_upgrade(1)
Darwin December 3, 2003 Darwin
Mac OS X 10.6Server - Generated Wed Apr 14 06:05:01 CDT 2010