Section (1) whereis
whereis — locate the binary, source, and manual page files for a command
whereis [options] [
−f ] name...
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
The search restrictions (options
−s) are cumulative and apply to the
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.
−S reset search paths for the
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.
Search for binaries.
Search for manuals.
Search for sources.
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 _zsingle_quotesz_whereis −m −u *_zsingle_quotesz_ asks for those files in the current directory which have no documentation file, or more than one.
Limit the places where whereis searches for binaries, by a whitespace-separated list of directories.
Limit the places where whereis searches for manuals and documentation in Info format, by a whitespace-separated list of directories.
Limit the places where whereis searches for sources, by a whitespace-separated list of directories.
Terminates the directory list and signals the start of filenames. It must be used when any of the
−Soptions is used.
Output the list of effective lookup paths that whereis is using. When none of
−Sis specified, the option will output the hard-coded paths that the command was able to find on the system.
Display help text and exit.
Display version information and exit.
To find all files in
/usr/bin which are not documented in
/usr/man/man1 or have no source
whereis −u −ms −M /usr/man/man1 −S /usr/src −f *
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
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
−S are displayed with
The whereis command is part of the util-linux package and is available from Linux Kernel Archive
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(#)whereis.1 from UCB 4.2