Provided by: man-db_2.5.7-4_i386 bug

whatis -

whatis [-dlhvV] [-r|-w] [-s ]

       [-m  [,...]]  [-M  ] [-L ] [-C ]  ... whatis [-dlhvV] [-r|-w] [-s ] [-m
       [,...]] [-M ] [-L ] [-C ]  ...

        . whatis
       ,   .

            (-w)
         (-r).    ,
              (\)
          ,
        .

            ,
         mandb.       ,
             cron
         .      whatis
            ,  :

       whatis -M manpath -w '*' | sort > manpath/whatis

        manpath --   ,  /usr/man.

       -d, --debug
                .

       -v, --verbose
                 .

       -r, --regex
                   .
                   ,
                  .

       -w, --wildcard
                  ,
                  .   ,
                    .
                 whatis -

       -l, --long
                   . ,
                      .

       -s , --section
                    .
                ,  "3",
                 "3", "3perl", "3x"   ;
                ,  "3perl",
                 .

       -m [,...], --systems=[,...]

              , NewOS,  -m NewOS.

              .  ,      man.
                  $SYSTEM.

       -M , --manpath=
                  ( )
                .  , whatis
               $MANPATH,      , manpath      $PATH.
                  $MANPATH.

       -L , --locale=
              whatis, ,        C-  setlocale(3),      ,  $LC_MESSAGES   $LANG.
              ,
                , whatis. ,
                  .

       -C , --config-file=

               ~/.manpath.

       -h, --help
                   .

       -V, --version
                 .

       0        .

       1          ,
                 .

       2        .

       16         .

       SYSTEM     $SYSTEM
               -m.

       MANPATH
                  $MANPATH,
                 ( )
                .

       MANWIDTH
                  $MANWIDTH,
                   ( --long).    ,    , ,   ioctl(2) $COLUMNS.     ,
               80 .

       /usr/share/man/index.(bt|db|dir|pag)
                   index.

       /var/cache/man/index.(bt|db|dir|pag)
               FHS     index.

       /usr/share/man/.../whatis
                  whatis.

       apropos(1), man(1), mandb(8).

Wilf. (G.Wilford@ee.surrey.ac.uk).

       Fabrizio Polacco (fpolacco@debian.org).
       Colin Watson (cjwatson@debian.org).