kchashmgr (1) - Linux Man Pages

kchashmgr: command line interface to manage the file hash database

NAME

kchashmgr - command line interface to manage the file hash database

DESCRIPTION

The command `kchashmgr' is a utility for test and debugging of the file hash database and its applications. `path' specifies the path of a database file. `key' specifies the key of a record. `value' specifies the value of a record. `file' specifies the input/output file.


kchashmgr create [-otr][-onl|-otl|-onr][-apow num][-fpow num][-ts][-tl][-tc][-bnum num]path
Creates a database file.

kchashmgr inform [-onl|-otl|-onr][-st]path
Prints status information.

kchashmgr set [-onl|-otl|-onr][-add|-app|-rep|-inci|-incd][-sx]pathkeyvalue
Stores a record.

kchashmgr remove [-onl|-otl|-onr][-sx]pathkey
Removes a record.

kchashmgr get [-onl|-otl|-onr][-rm][-sx][-px][-pz]pathkey
Prints the value of a record.

kchashmgr list [-onl|-otl|-onr][-max num][-rm][-sx][-pv][-px]path[key]
Prints keys of all records, separated by line feeds.

kchashmgr clear [-onl|-otl|-onr]path
Removes all records of a database.

kchashmgr import [-onl|-otl|-onr][-sx]path[file]
Imports records from a TSV file.

kchashmgr copy [-onl|-otl|-onr]pathfile
Copies the whole database.

kchashmgr dump [-onl|-otl|-onr]path[file]
Dumps records into a snapshot file.

kchashmgr load [-otr][-onl|-otl|-onr]path[file]
Loads records from a snapshot file.

kchashmgr defrag [-onl|-otl|-onr]path
Performs defragmentation.

kchashmgr setbulk [-onl|-otl|-onr]pathkeyvalue ...
Store records at once.

kchashmgr removebulk [-onl|-otl|-onr][-sx]pathkey ...
Remove records at once.

kchashmgr getbulk [-onl|-otl|-onr][-sx][-px]pathkey ...
Retrieve records at once.

kchashmgr check [-onl|-otl|-onr]path
Checks consistency.

Options feature the following.

-otr : opens the database with the truncation option.
-onl : opens the database with the no locking option.
-otl : opens the database with the try locking option.
-onr : opens the database with the no auto repair option.
-apow num : specifies the power of the alignment of record size.
-fpow num : specifies the power of the capacity of the free block pool.
-ts : tunes the database with the small option.
-tl : tunes the database with the linear option.
-tc : tunes the database with the compression option.
-bnum num : specifies the number of buckets of the hash table.
-st : prints miscellaneous information.
-add : performs adding operation.
-app : performs appending operation.
-rep : performs replacing operation.
-inci : performs integer increment operation.
-incd : performs real number increment operation.
-sx : the input data is evaluated as a hexadecimal data string.
-rm : removes the record.
-px : the output data is converted into a hexadecimal data string.
-pz : does not append line feed at the end of the output.
-max num : specifies the maximum number of shown records.
-pv : prints values of records also.

This command returns 0 on success, another on failure.

SEE ALSO

kchashtest(1)