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updatedb creates or updates a database used by locate(1). If the
database already exists, its data is reused to avoid rereading directo-
ries that have not changed.
updatedb is usually run daily by cron(8) to update the default
updatedb returns with exit status 0 on success, 1 on error.
The PRUNE_BIND_MOUNTS, PRUNEFS, PRUNENAMES and PRUNEPATHS variables,
which are modified by some of the options, are documented in detail in
-f, --add-prunefs FS
Add entries in white-space-separated list FS to PRUNEFS.
-n, --add-prunenames NAMES
Add entries in white-space-separated list NAMES to PRUNENAMES.
-e, --add-prunepaths PATHS
Add entries in white-space-separated list PATHS to PRUNEPATHS.
-U, --database-root PATH
Store only results of scanning the file system subtree rooted at
PATH to the generated database. The whole file system is
scanned by default.
locate(1) outputs entries as absolute path names which don't
contain symbolic links, regardless of the form of PATH.
Write debugging information about pruning decisions to standard
Write a summary of the available options to standard output and
Set PRUNEFS to FS, overriding the configuration file.
Set PRUNENAMES to NAMES, overriding the configuration file.
Set PRUNEPATHS to PATHS, overriding the configuration file.
-l, --require-visibility FLAG
Set the "require file visibility before reporting it" flag in
the generated database to FLAG.
If FLAG is 0 or no, or if the database file is readable by "oth-
ers" or it is not owned by slocate, locate(1) outputs the
database entries even if the user running locate(1) could not
have read the directory necessary to find out the file described
by the database entry.
If FLAG is 1 or yes (the default), locate(1) checks the permis-
sions of parent directories of each entry before reporting it to
the invoking user. To make the file existence truly hidden from
other users, the database group is set to slocate and the
database permissions prohibit reading the database by users
using other means than locate(1), which is set-gid slocate.
Note that the visibility flag is checked only if the database is
owned by slocate and it is not readable by "others".
Output path names of files to standard output, as soon as they
Write information about the version and licence of locate on
standard output and exit successfully.
To create a private mlocate database as an user other than root, run
updatedb -l 0 -o db_file -U source_directory
Note that all users that can read db_file can get the complete list of
files in the subtree of source_directory.
A configuration file. See updatedb.conf(5).
slocate and attempts to be compatible to GNU locate where possible.
This is not the case for updatedb.
Miloslav Trmac <email@example.com>
locate(1), mlocate.db(5), updatedb.conf(5)
mlocate Jun 2008 updatedb(8)