NAVN

       mandb - create or update the manual page index caches

SYNOPSIS

       mandb [-dqsucpt?V] [-C fil] [manualsti]
       mandb [-dqsut] [-C fil] -f filnavn ...

BESKRIVELSE

       mandb  is  used  to  initialise  or manually update index database caches that are usually
       maintained by man.  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 kan kompileres med understøttelse for enhver af de følgende databasetyper.

       Navn
       Type
       Async
       Filnavn
       ──────────────────────────────
       Berkeley db
       Binært træ
       Ja
       index.bt
       GNU gdbm v >= 1.6
       Hashed
       Ja
       index.db
       GNU gdbm v <  1.6
       Hashed
       Nej
       index.db
       UNIX ndbm
       Hashed
       Nej
       index.(dir|pag)

       De  databasetyper  som understøtter asynkrone opdateringer tilbyder forbedret hastighed på
       bekostning af muligheden  for  korruption  i  tilfælde  af  usædvanlig  afslutning.  I  et
       usædvanligt  tilfælde, hvor dette er opstået, kan det være nødvendigt at genkøre mandb med
       tilvalget -c for at genskabe databaserne fra bunden af.

TILVALG

       -d, --debug
              Vis fejlsøgningsinformation.

       -q, --quiet
              Lav ingen advarsler.

       -s, --no-straycats
              Brug ikke tid på at kigge efter eller tilføje information til databaserne  angående
              vildfarne katalogsider.

       -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
              Opret kun brugerdatabaser, selv med skriverettigheder  nødvendige  for  at  oprette
              systemdatabaser.

       -t, --test
              Udfør  kontrol  af  korrekthed på manualsider i søgestien for hierarkiet. Med dette
              tilvalg vil mandb ikke ændre eksisterende databaser.

       -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 fil, --config-file=fil
              Brug denne brugerkonfigurationsfil frem for standarden ~/.manpath.

       -?, --help
              Vis brugsbeskeden, afslut så.

       --usage
              Vis en kort hjælpebesked og afslut.

       -V, --version
              Vis versionen og afslut.

AFSLUT-STATUS

       0      Programkørsel endt uden fejl.

       1      Brugs- syntaks- eller konfigurationsfilfejl.

       2      Operationel fejl.

       3      En underproces mislykkedes.

DIAGNOSTICS

       De følgende advarselsbeskeder kan udelades under opbygning af database.

       <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.

       <filnavn>: ignorerer falske filnavne
              The <filename> may or may not be a valid manual page but its name is invalid.  This
              is  usually  due  to a manual page with sectional extension <x> being put in manual
              page section <y>.

       <filename_mask>: konkurrerende udvidelser
              Jokertegnet <filename_mask> er ikke unik. Dette skyldes normalt eksistensen af både
              en  pakket  og  udpakket  version af den samme manualside. Alle undtagen de seneste
              ignoreres

FILER

       /etc/manpath.config
              konfigurationsfil for man-db.

       /var/cache/man/index.(bt|db|dir|pag)
              Et FHS-overholdende globalt index-databasemellemlager.

       Tidligere placeringer for databasens mellemlager inkluderede:

       /usr/man/index.(bt|db|dir|pag)
              Et traditionelt globalt index-databasemellemlager.

       /var/catman/index.(bt|db|dir|pag)
              An alternate or FSSTND compliant global index database cache.

SE OGSÅ

       lexgrog(1), man(1), manpath(5), catman(8)

       The WHATIS PARSING section formerly in this manual page is now part of lexgrog(1).

FORFATTER

       Wilf. (G.Wilford@ee.surrey.ac.uk).
       Fabrizio Polacco (fpolacco@debian.org).
       Colin Watson (cjwatson@debian.org).