updatedb(8)                                                        updatedb(8)

udpatedb – update a database for mlocate

updatedb [OPTION]…

updatedb  creates  or  updates a database used by locate(1).  If the
database already exists, its  data  is  reused  to  avoid  rereading
directories 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 PRUNEFS and PRUNEPATHS variables, which are modified by some  of
the options, are documented in detail in updatedb.conf(5).

-f, –add-prunefs FS
Add entries in white-space-separated list FS to PRUNEFS.

-e, –add-prunepaths PATHS
Add   entries   in   white-space-separated   list   PATHS  to

-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.

PATH must be an absolute path name, but it may  contain  sym-
bolic  links;  locate(1)  will  output  the entries using the
exact spelling of PATH.

-h, –help
Write a summary of the available options to  standard  output
and exit sucessfully.

-o, –output FILE
Write  the  database  to  FILE  instead  of using the default

–prunefs IFS
Set PRUNEFS to IFS, overriding the config file.

–prunepaths IPATHS
Set PRUNEPATHS to IPATHS, overriding the config file.

-l, –require-visibility IFLAG
Set the “require file visibility before reporting it” flag in
the generated database to FLAG.

If  FLAG  is  0 or no, 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  per-
missions 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 sgid slo-

-v, –verbose
Output path names of files to standard  output,  as  soon  as
they are found.

-V, –version
Write  information about the version and licence of locate on
standard output and exit sucessfully.

A configuration file.  See updatedb.conf(5).

The database updated by default.

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.

The accompanying locate(1) utility was designed to be compatible  to
slocate  and attempts to be compatible to GNU locate where possible.
This is not the case for updatedb.

Miloslav Trmac <mitr@redhat.com>

locate(1), mlocate.db(5), updatedb.conf(5)

mlocate                            Jul 2005                        updatedb(8)