MANDB
Section: Hulpprogramma's paginaopmaker (8)
Updated: 2020-06-22
Page Index
NAAM
mandb - create or update the manual page index caches
SAMENVATTING
mandb [
-dqsucpt?V] [
-C file] [
manpath]
mandb [
-dqsut] [
-C file]
-f filename ...
BESCHRIJVING
mandb is used to initialise or manually update
index database
caches. The caches contain information relevant to the current state of the
manual page system and the information stored within them is used by the
man-db utilities to enhance their speed and functionality.
When creating or updating an index, mandb will warn of bad ROFF .so
requests, bogus manual page filenames and manual pages from which the
whatis cannot be parsed.
Supplying mandb with an optional colon-delimited path will override the
internal system manual page hierarchy search path, determined from
information found within the man-db configuration file.
DATABASE CACHES
mandb can be compiled with support for any one of the following
database types.
| Name | Type | Async | Filename
|
|
| Berkeley db |
Binary tree
| Yes | index.bt
|
| GNU gdbm |
Hashed
| Yes | index.db
|
| UNIX ndbm |
Hashed
| No | index.(dir|pag)
|
Those database types that support asynchronous updates provide enhanced
speed at the cost of possible corruption in the event of unusual
termination. In an unusual case where this has occurred, it may be
necessary to rerun mandb with the -c option to re-create the
databases from scratch.
OPTIES
- -d, --debug
-
Foutinformatie tonen.
- -q, --quiet
-
Produce no warnings.
- -s, --no-straycats
-
Do not spend time looking for or adding information to the databases
regarding stray cats.
- -p, --no-purge
-
Do not spend time checking for deleted manual pages and purging them from
the databases.
- -c, --create
-
By default, mandb will try to update any previously created databases.
If a database does not exist, it will create it. This option forces
mandb to delete previous databases and re-create them from scratch, and
implies --no-purge. This may be necessary if a database becomes corrupt
or if a new database storage scheme is introduced in the future.
- -u, --user-db
-
Create user databases only, even with write permissions necessary to create
system databases.
- -t, --test
-
Perform correctness checks on manual pages in the hierarchy search path.
With this option, mandb will not alter existing databases.
- -f, --filename
-
Update only the entries for the given filename. This option is not for
general use; it is used internally by man when it has been compiled
with the MAN_DB_UPDATES option and finds that a page is out of date. It
implies -p and disables -c and -s.
- -C bestand, --config-file=bestand
-
Gebruik dit gebruikersconfiguratiebestand in plaats van de standaard van
~/.manpath.
- -?, --help
-
Show the usage message, then exit.
- --usage
-
Print a short usage message and exit.
- -V, --version
-
Show the version, then exit.
STOPSTATUS
- 0
-
Programma correct uitgevoerd.
- 1
-
Usage, syntax, or configuration file error.
- 2
-
Uitvoeringsfout.
- 3
-
A child process failed.
DIAGNOSTICS
The following warning messages can be emitted during database building.
- <filename>: whatis parse for page(sec) failed
-
An attempt to extract whatis line(s) from the given <filename>
failed. This is usually due to a poorly written manual page, but if many
such messages are emitted it is likely that the system contains non-standard
manual pages which are incompatible with the man-db whatis parser. See the
WHATIS PARSING section in lexgrog(1) for more information.
- <filename>: is a dangling symlink
-
<filename> does not exist but is referenced by a symbolic link.
Further diagnostics are usually emitted to identify the <filename>
of the offending link.
- <filename>: bad symlink or ROFF `.so' request
-
<filename> is either a symbolic link to, or contains a ROFF include
request to, a non existent file.
- <filename>: genegeerde onzin bestandsnaam
-
<filename> kan een al dan niet geldige man-pagina zijn, maar de
naam is ongeldig. Dit wordt meestal veroorzaakt door een man-pagina met een
uitbreiding van de sectie <x> die in de man-paginasectie
<y> is gestopt.
- <filename_mask>: strijdende extensies
-
Het jokerteken <filename_mask> is niet uniek. Dit wordt meestal
veroorzaakt door het bestaan van zowel een gecomprimeerde als een
gedecomprimeerde versie van dezelfde man-pagina. Alle behalve de meeste
recente versie worden genegeerd.
BESTANDEN
- /etc/man_db.conf
-
man-db-configuratiebestand.
- /var/cache/man/index.(bt|db|dir|pag)
-
Een algemene index-database-cache, in overeenstemming met FHS.
Oudere locaties van de database-cache bestaan uit:
- /usr/man/index.(bt|db|dir|pag)
-
Een traditionele, algemene index-database-cache.
- /var/catman/index.(bt|db|dir|pag)
-
An alternate or FSSTND compliant global index database cache.
ZIE OOK
lexgrog(1),
man(1),
manpath(5),
catman(8)
De voormalige sectie WAT IS ONTLEDEN is nu onderdeel van lexgrog(1).
AUTEUR
Wilf. (G.Wilford@ee.surrey.ac.uk).Fabrizio Polacco (fpolacco@debian.org).Colin Watson (cjwatson@debian.org).
BUGS
https://savannah.nongnu.org/bugs/?group=man-db