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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.
−bSearch only for binaries.
−mSearch only for manuals.
−sSearch only for sources.
−uOnly 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 listLimit the places where whereis searches for binaries, by a whitespace-separated list of directories.
−M listLimit the places where whereis searches for manuals, by a whitespace-separated list of directories.
−S listLimit the places where whereis searches for sources, by a whitespace-separated list of directories.
−fTerminates the directory list and signals the start
of filenames. It must be used when any of the
−B, −M, or −S options is used.
−lOutput 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
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Copyright (c) 1980, 1990 The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the University of California, Berkeley and its contributors. 4. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. (#)whereis.1 from UCB 4.2 |