find: Invoking locate

 
 8.2 Invoking 'locate'
 =====================
 
      locate [OPTION...] PATTERN...
 
    For each PATTERN given 'locate' searches one or more file name
 databases returning each match of PATTERN.
 
 '--all'
 '-A'
      Print only names which match all non-option arguments, not those
      matching one or more non-option arguments.
 
 '--basename'
 '-b'
      The specified pattern is matched against just the last component of
      the name of a file in the 'locate' database.  This last component
      is also called the "base name".  For example, the base name of
      '/tmp/mystuff/foo.old.c' is 'foo.old.c'.  If the pattern contains
      metacharacters, it must match the base name exactly.  If not, it
      must match part of the base name.
 
 '--count'
 '-c'
      Instead of printing the matched file names, just print the total
      number of matches found, unless '--print' ('-p') is also present.
 
 '--database=PATH'
 '-d PATH'
      Instead of searching the default 'locate' database
      '/var/cache/locate/locatedb', 'locate' searches the file name
      databases in PATH, which is a colon-separated list of database file
      names.  You can also use the environment variable 'LOCATE_PATH' to
      set the list of database files to search.  The option overrides the
      environment variable if both are used.  Empty elements in PATH
      (that is, a leading or trailing colon, or two colons in a row) are
      taken to stand for the default database.  A database can be
      supplied on stdin, using '-' as an element of 'path'.  If more than
      one element of 'path' is '-', later instances are ignored (but a
      warning message is printed).
 
 '--existing'
 '-e'
      Only print out such names which currently exist (instead of such
      names which existed when the database was created).  Note that this
      may slow down the program a lot, if there are many matches in the
      database.  The way in which broken symbolic links are treated is
      affected by the '-L', '-P' and '-H' options.  Please note that it
      is possible for the file to be deleted after 'locate' has checked
      that it exists, but before you use it.  This option is
      automatically turned on when reading an 'slocate' database in
      secure mode (⇒slocate Database Format).
 
 '--non-existing'
 '-E'
      Only print out such names which currently do not exist (instead of
      such names which existed when the database was created).  Note that
      this may slow down the program a lot, if there are many matches in
      the database.  The way in which broken symbolic links are treated
      is affected by the '-L', '-P' and '-H' options.  Please note that
      'locate' checks that the file does not exist, but a file of the
      same name might be created after 'locate''s check but before you
      read 'locate''s output.
 
 '--follow'
 '-L'
      If testing for the existence of files (with the '-e' or '-E'
      options), consider broken symbolic links to be non-existing.  This
      is the default behaviour.
 
 '--nofollow'
 '-P'
 '-H'
      If testing for the existence of files (with the '-e' or '-E'
      options), treat broken symbolic links as if they were existing
      files.  The '-H' form of this option is provided purely for
      similarity with 'find'; the use of '-P' is recommended over '-H'.
 
 '--ignore-case'
 '-i'
      Ignore case distinctions in both the pattern and the file names.
 
 '--limit=N'
 '-l N'
      Limit the number of results printed to N. When used with the
      '--count' option, the value printed will never be larger than this
      limit.
 '--max-database-age=D'
      Normally, 'locate' will issue a warning message when it searches a
      database which is more than 8 days old.  This option changes that
      value to something other than 8.  The effect of specifying a
      negative value is undefined.
 '--mmap'
 '-m'
      Accepted but does nothing.  The option is supported only to provide
      compatibility with BSD's 'locate'.
 
 '--null'
 '-0'
      Results are separated with the ASCII NUL character rather than the
      newline character.  To get the full benefit of this option, use the
      new 'locate' database format (that is the default anyway).
 
 '--print'
 '-p'
      Print search results when they normally would not be due to use of
      '--statistics' ('-S') or '--count' ('-c').
 
 '--wholename'
 '-w'
      The specified pattern is matched against the whole name of the file
      in the 'locate' database.  If the pattern contains metacharacters,
      it must match exactly.  If not, it must match part of the whole
      file name.  This is the default behaviour.
 
 '--regex'
 '-r'
      Instead of using substring or shell glob matching, the pattern
      specified on the command line is understood to be a regular
      expression.  GNU Emacs-style regular expressions are assumed unless
      the '--regextype' option is also given.  File names from the
      'locate' database are matched using the specified regular
      expression.  If the '-i' flag is also given, matching is
      case-insensitive.  Matches are performed against the whole path
      name, and so by default a pathname will be matched if any part of
      it matches the specified regular expression.  The regular
      expression may use '^' or '$' to anchor a match at the beginning or
      end of a pathname.
 
 '--regextype'
      This option changes the regular expression syntax and behaviour
      used by the '--regex' option.  ⇒Regular Expressions for more
      information on the regular expression dialects understood by GNU
      findutils.
 
 '--stdio'
 '-s'
      Accepted but does nothing.  The option is supported only to provide
      compatibility with BSD's 'locate'.
 
 '--statistics'
 '-S'
      Print some summary information for each 'locate' database.  No
      search is performed unless non-option arguments are given.
      Although the BSD version of locate also has this option, the format
      of the output is different.
 
 '--help'
      Print a summary of the command line usage for 'locate' and exit.
 
 '--version'
      Print the version number of 'locate' and exit.