find: Database Locations

 
 4.1 Database Locations
 ======================
 
 There can be multiple file name databases.  Users can select which
 databases 'locate' searches using the 'LOCATE_PATH' environment variable
 or a command line option.  The system administrator can choose the file
 name of the default database, the frequency with which the databases are
 updated, and the directories for which they contain entries.  File name
 databases are updated by running the 'updatedb' program, typically
 nightly.
 
    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.
 
    ⇒Invoking updatedb, for the description of the options to
 'updatedb'.  These options can be used to specify which directories are
 indexed by each database file.
 
    The default location for the locate database depends on how findutils
 is built, but the findutils installation accompanying this manual uses
 the default location '/var/cache/locate/locatedb'.
 
    If no database exists at '/var/cache/locate/locatedb' but the user
 did not specify where to look (by using '-d' or setting 'LOCATE_PATH'),
 then 'locate' will also check for a "secure" database in
 '/var/lib/slocate/slocate.db'.