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UPDATEDB(1)		    General Commands Manual		   UPDATEDB(1)

NAME
       updatedb	- update a file	name database

SYNOPSIS
       updatedb	[options]

DESCRIPTION
       This  manual  page documents the	GNU version of updatedb, which updates
       file name databases used	by GNU locate.	The file name  databases  con-
       tain  lists  of	files that were	in particular directory	trees when the
       databases were last updated.  The file name of the default database  is
       determined  when	locate and updatedb are	configured and installed.  The
       frequency with which the	databases are updated and the directories  for
       which  they  contain  entries  depend on	how often updatedb is run, and
       with which arguments.

       In networked environments, it often makes sense to build	a database  at
       the  root  of each filesystem, containing the entries for that filesys-
       tem.  updatedb is then run for each filesystem on the fileserver	 where
       that  filesystem	 is on a local disk, to	prevent	thrashing the network.
       Users can select	which databases	locate searches	using  an  environment
       variable	 or  command  line option; see locate(1).  Databases cannot be
       concatenated together.

       The file	name database format changed starting with GNU find and	locate
       version	4.0  to	 allow machines	with different byte orderings to share
       the databases.  The new GNU locate can read both	the old	and new	 data-
       base  formats.  However,	old versions of	locate and find	produce	incor-
       rect results if given a new-format database.

OPTIONS
       --findoptions='-option1 -option2...'
	      Global options to	pass on	to  find.   The	 environment  variable
	      FINDOPTIONS also sets this value.	 Default is none.

       --localpaths='path1 path2...'
	      Non-network directories to put in	the database.  Default is /.

       --netpaths='path1 path2...'
	      Network  (NFS,  AFS,  RFS, etc.) directories to put in the data-
	      base.  The environment variable NETPATHS also sets  this	value.
	      Default is none.

       --prunepaths='path1 path2...'
	      Directories  to  not  put	in the database, which would otherwise
	      be.  Remove any trailing slashes from the	path names,  otherwise
	      updatedb	won't recognise	the paths you want to omit (because it
	      uses them	as  regular  expression	 patterns).   The  environment
	      variable	PRUNEPATHS  also  sets	this  value.   Default is /tmp
	      /usr/tmp /var/tmp	/afs.

       --prunefs='path...'
	      File systems to not put in the database, which  would  otherwise
	      be.   Note  that files are pruned	when a file system is reached;
	      any file system mounted under an undesired file system  will  be
	      ignored.	The environment	variable PRUNEFS also sets this	value.
	      Default is nfs NFS proc.

       --output=dbfile
	      The database file	to build.  Default  is	system-dependent.   In
	      Debian GNU/Linux,	the default is /var/cache/locate/locatedb.

       --localuser=user
	      The  user	 to  search  non-network  directories as, using	su(1).
	      Default is to search the non-network directories as the  current
	      user.   You  can	also use the environment variable LOCALUSER to
	      set this user.

       --netuser=user
	      The user to search network directories as, using su(1).  Default
	      is daemon.  You can also use the environment variable NETUSER to
	      set this user.

       --old-format
	      Create the database in the old format.  This is  a  synonym  for
	      --dbformat=old.

       --dbformat=F
	      Create  the  database in format F.  The default format is	called
	      LOCATE02.	 F can be old to select	the old	database format	 (this
	      is the same as specifying	--old-format).	Alternatively the slo-
	      cate format is also supported.  When the slocate	format	is  in
	      use, the database	produced is marked as having security level 1.
	      If you want to build a system-wide  slocate  database,  you  may
	      want to run updatedb as root.

       --version
	      Print the	version	number of updatedb and exit.

       --help Print a summary of the options to	updatedb and exit.

SEE ALSO
       find(1),	locate(1), locatedb(5),	xargs(1)

       The  full documentation for updatedb is maintained as a Texinfo manual.
       If the info and updatedb	programs are properly installed	at your	 site,
       the  command  info updatedb should give you access to the complete man-
       ual.

BUGS
       The updatedb program correctly handles filenames	 containing  newlines,
       but  only if the	system's sort command has a working -z option.	If you
       suspect that locate may need to return filenames	 containing  newlines,
       consider	using its --null option.

       The  best  way  to  report  a  bug  is to use the form at http://savan-
       nah.gnu.org/bugs/?group=findutils.  The reason for  this	 is  that  you
       will then be able to track progress in fixing the problem.   Other com-
       ments about updatedb(1) and about the findutils package in general  can
       be  sent	 to  the  bug-findutils	 mailing list.	To join	the list, send
       email to	bug-findutils-request@gnu.org.

								   UPDATEDB(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | BUGS

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