NAME
whereis
—
locate programs
SYNOPSIS
whereis |
[-abmqu ] [-BM
dir ... -f ]
program ... |
DESCRIPTION
The whereis
utility checks the standard
binary, and manual page directories for the specified programs, printing out
the paths of any it finds. The supplied program names are first stripped of
leading path name components and any single trailing extension added by
gzip(1),
compress(1), or bzip2(1).
The default path searched is the string returned by the
sysctl(8)
utility for the “user.cs_path” string, with
/usr/libexec and the current user's
$PATH
appended. Manual pages are searched by default
along the $MANPATH
.
The following options are available:
-B
- Specify directories to search for binaries. Requires the
-f
option. -M
- Specify directories to search for manual pages. Requires the
-f
option. -a
- Report all matches instead of only the first of each requested type.
-b
- Search for binaries.
-f
- Delimits the list of directories after the
-B
,-M
, or-S
options, and indicates the beginning of the program list. -m
- Search for manual pages.
-q
- (“quiet”). Suppress the output of the utility name in front of the normal output line. This can become handy for use in a backquote substitution of a shell command line, see EXAMPLES.
-u
- Search for “unusual” entries. A file is said to be unusual if it does not have at least one entry of each requested type. Only the name of the unusual entry is printed.
EXAMPLES
The following finds all utilities under /usr/bin that do not have documentation:
whereis -m -u /usr/bin/*
SEE ALSO
HISTORY
The whereis
utility appeared in
3.0BSD. This version re-implements the historical
functionality that was lost in 4.4BSD.
AUTHORS
This implementation of the whereis
command
was written by Jörg Wunsch.
BUGS
This re-implementation of the whereis
utility is not bug-for-bug compatible with historical versions. It is
believed to be compatible with the version that was shipping with
FreeBSD 2.2 through FreeBSD
4.5 though.