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  • LINUX man pages
  • Linux Man Page Viewer


    The following form allows you to view linux man pages.

    Command:

    mandb

    
    
    

    SYNOPSIS

           mandb [-dqsucpt|-h|-V] [-C file] [manpath]
           mandb [-dqsut] [-C file] -f filename ...
    
    
    

    DESCRIPTION

           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 infor-
           mation 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 v >= 1.6   Hashed        Yes     index.db
           GNU gdbm v <  1.6   Hashed        No      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 termi-
           nation.  In an unusual case where this has occurred, it may  be  neces-
           sary  to rerun mandb with the -c option to re-create the databases from
           scratch.
    
    
    

    OPTIONS

           -d, --debug
                  Print debugging information.
    
           -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.
    
                  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 file, --config-file=file
                  Use  this  user  configuration  file  rather than the default of
                  ~/.manpath.
    
           -h, --help
                  Show the usage message, then exit.
    
           -V, --version
                  Show the version, then exit.
    
    
    

    EXIT STATUS

           0      Successful program execution.
    
           1      Usage, syntax, or configuration file error.
    
           2      Operational error.
    
           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 sys-
                  tem 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 <file-
                  name> 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>: ignoring bogus filename
                  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 sec-
                  tional extension <x> being put in manual page section <y>.
    
           Older locations for the database cache included:
    
           /usr/man/index.(bt|db|dir|pag)
                  A traditional global index database cache.
    
           /var/catman/index.(bt|db|dir|pag)
                  An alternate or FSSTND compliant global index database cache.
    
    
    

    SEE ALSO

           lexgrog(1), man(1), manpath(5), catman(8)
    
           The WHATIS PARSING section formerly in this manual page is now part  of
           lexgrog(1).
    
    
    

    AUTHOR

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

    2.6.1 2012-02-14 MANDB(8)

    
    
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