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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | BUGS | COLOPHON |
UPDATEDB(1) General Commands Manual UPDATEDB(1)
updatedb - update a file name database
updatedb [options]
This manual page documents the GNU version of updatedb, which updates
file name databases used by GNU locate. The file name databases
contain 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
filesystem. 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 @samp{LOCATGE02} database format was introduced in GNU findutils
version 4.0 in order to allow machines with different byte orderings
to share the databases. GNU locate can read both the old and
@samp{LOCATE02} database formats, though support for the old pre-4.0
database format will be removed shortly.
--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
database. 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.
--dbformat=F
Create the database in format F. The default format is called
LOCATE02. Alternatively the slocate 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.
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 manual.
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://savannah.gnu.org/bugs/?group=findutils. The reason for this
is that you will then be able to track progress in fixing the
problem. Other comments 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.
This page is part of the findutils (find utilities) project.
Information about the project can be found at
⟨http://www.gnu.org/software/findutils/⟩. If you have a bug report
for this manual page, see ⟨http://www.gnu.org/software/findutils/⟩.
This page was obtained from the project's upstream Git repository
⟨git://git.savannah.gnu.org/findutils.git⟩ on 2017-07-05. If you dis‐
cover any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
UPDATEDB(1)
Pages that refer to this page: find(1), locate(1), updatedb(1), xargs(1)