Section: Maintenance Commands (8)
Updated: Jun 2008
updatedb - update a database for mlocate
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 (5).
If FLAG is 0 or no, or if the database file is readable by "others" or it is not owned by mlocate, 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 permissions 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 mlocate and the database permissions prohibit reading the database by users using other means than locate?(1), which is set-gid mlocate.
Note that the visibility flag is checked only if the database is owned by mlocate and it is not readable by "others".
To create a private mlocate database as an user other than root, run
Note that all users that can read db_file can get the complete list of files in the subtree of source_directory.
Databases built with --require-visibility no allow users to find names of files and directories of other users, which they would not otherwise be able to do.
Miloslav Trmac <firstname.lastname@example.org>
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