Manual: whereis

WHEREIS(1)						User Commands						  WHEREIS(1)

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

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

DESCRIPTION
       whereis locates the binary, source and manual files for the specified command names. The supplied names are first
       stripped of leading pathname components. 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.

       The search restrictions (options -b, -m and -s) are cumulative and apply to the subsequent name patterns on the
       command line. Any new search restriction resets the search mask. For example,

	  whereis -bm ls tr -m gcc

       searches for "ls" and "tr" binaries and man pages, and for "gcc" man pages only.

       The options -B, -M and -S reset search paths for the subsequent name patterns. For example,

	  whereis -m ls -M /usr/share/man/man1 -f cal

       searches for "ls" man pages in all default paths, but for "cal" in the /usr/share/man/man1 directory only.

OPTIONS
       -b
	   Search for binaries.

       -m
	   Search for manuals.

       -s
	   Search 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-separated list of directories.

       -M list
	   Limit the places where whereis searches for manuals and documentation in Info format, by a whitespace-separated
	   list of directories.

       -S list
	   Limit the places where whereis searches for sources, by a whitespace-separated 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 the list of effective lookup paths that whereis is using. When none of -B, -M, or -S is specified, the
	   option will output the hard-coded paths that the command was able to find on the system.

       -g
	   Interpret the next names as a glob(7) patterns. whereis always compares only filenames (aka basename) and never
	   complete path. Using directory names in the pattern has no effect. Don’t forget that the shell interprets the
	   pattern when specified on the command line without quotes. It’s necessary to use quotes for the name, for
	   example:

	      whereis -g 'find*'

       -h, --help
	   Display help text and exit.

       -V, --version
	   Display version and exit.

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

ENVIRONMENT
       WHEREIS_DEBUG=all
	   enables debug output.

EXAMPLES
       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 *

REPORTING BUGS
       For bug reports, use the issue tracker .

AVAILABILITY
       The whereis command is part of the util-linux package which can be downloaded from Linux Kernel Archive
       .

util-linux 2.41.3					 2025-12-15						  WHEREIS(1)