updatedb - update a file name database
This manual page
documents the GNU version of
which updates file name databases used by GNU
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
In networked environments, it often makes sense to build a database at
the root of each filesystem, containing the entries for that filesystem.
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(1L).
Databases can not be concatenated together.
The file name database format changed starting with GNU
version 4.0 to allow machines with diffent byte orderings to share
the databases. The new GNU
can read both the old and new database formats.
However, old versions of
produce incorrect results if given a new-format database.
- --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.
Default is none.
- --prunepaths='path1 path2...'
- Directories to not put in the database, which would otherwise be.
Default is /tmp /usr/tmp /var/tmp /afs.
- The database file to build.
Default is system-dependent, but typically /usr/local/var/locatedb.
- The user to search network directories as, using su(1).
Default is daemon.
- Create the database in the old format instead of the new one.
- Print the version number of
- Print a summary of the options to
find(1L), locate(1L), locatedb(5L), xargs(1L)
Finding Files (on-line in Info, or printed)