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WHEREIS(1)				  User Commands 			       WHEREIS(1)

       whereis - locate the binary, source, and manual page files for a command

       whereis [options] [-BMS directory... -f] name...

       whereis	locates the binary, source and manual files for the specified command names.  The
       supplied names are first stripped of leading pathname components and any (single) trailing
       extension  of the form .ext (for example: .c) Prefixes of s.  resulting from use of source
       code control are also dealt with.  whereis then attempts to locate the desired program  in
       the standard Linux places, and in the places specified by $PATH and $MANPATH.

       -b     Search only for binaries.

       -m     Search only for manuals.

       -s     Search only for sources.

       -u     Only show the command names that have unusual entries.  A command is said to
	      be unusual if it does not have just one entry of each  explicitly  requested
	      type.   Thus 'whereis -m -u *' asks for those files in the current directory
	      which have no documentation file, or more than one.

       -B list
	      Limit the places where whereis searches for binaries, by a  whitespace-sepa-
	      rated list of directories.

       -M list
	      Limit  the  places where whereis searches for manuals, by a whitespace-sepa-
	      rated list of directories.

       -S list
	      Limit the places where whereis searches for sources, by  a  whitespace-sepa-
	      rated list of directories.

       -f     Terminates  the  directory list and signals the start of filenames.  It must
	      be used when any of the -B, -M, or -S options is used.

       -l     Output list of effective lookup paths the whereis is using.  When non of -B,
	      -M, or -S is specified the option will out hard coded paths that the command
	      was able to find on system.

       To find all files in /usr/bin which are not documented in /usr/man/man1 or have	no
       source in /usr/src:

	      $ cd /usr/bin
	      $ whereis -u -ms -M /usr/man/man1 -S /usr/src -f *

       By  default  whereis  tries  to find files from hard-coded paths, which are defined
       with glob patterns. The command attempst to use	contents  of  $PATH  and  $MANPATH
       environment  variables  as default search path.	The easiest way to know what paths
       are in use is to add -l listing option.	Effects of the -B, -M, and -S are  display
       with -l.

       The  whereis  command is part of the util-linux package and is available from Linux
       Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils/util-linux/>.

util-linux				    March 2013				       WHEREIS(1)

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