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193 lines
4.0 KiB
Groff
193 lines
4.0 KiB
Groff
.\" This man page is based on another man page copyright (c) 1980
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.\" by the Regents of the University of California.
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.\" All rights reserved. The Berkeley software License Agreement
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.\" specifies the terms and conditions for redistribution.
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.\"
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.\" While this manual page is based on one from UCB, the included
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.\" C source, makefile, and executables are copyright (c) 1995-1998
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.\" by Devin Reade <gdr@trenco.gno.org>. All rights reserved.
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.\"
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.TH WHATIS 1 "28 March 1998" GNO "Commands and Applications"
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.SH NAME
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whatis, apropos \- locate commands by name or keyword lookup
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.SH SYNOPSIS
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.BR apropos
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[[
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.BI \-M path
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] | [
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.BI \-m path
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]] [
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.BR -nV
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]
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.IR keyword " ..."
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.br
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.BR whatis
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[[
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.BI \-M path
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] | [
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.BI \-m path
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]] [
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.BR -nV
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]
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.IR keyword ...
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.SH DESCRIPTION
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.BR whatis
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shows the manual page title line for the specified
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.IR keyword (s),
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while
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.BR apropos
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shows which manual pages contain instances of any of the given
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.IR keyword (s)
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in their title line.
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Each word is considered separately and, for the GNO implementation,
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the case of letters is ignored.
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Words which are part of other words are considered; when looking for
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.IR compile ,
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.BR apropos
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will also list all instances of
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.IR compiler .
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.LP
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If a line output by either of these commands starts with
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.nf
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\fIname\fR (\fIsection\fR) ...
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.fi
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you can enter
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.BI man name
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or
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.BI man " section name"
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to get its documentation.
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.SH OPTIONS
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.IP "\fB\-M\fP \fIpath\fP"
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Override the list of standard directories
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.BR apropos
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or
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.BR whatis
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search for the
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.BR whatis
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database.
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The supplied
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.I path
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must be a colon\- or space\-delimited list of directories.
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This search path may also be set using the environment variable
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.BR MANPATH .
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The space delimiter is provided for compatibility with GS/OS's
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use of the colon as a pathname component delimiter. If the search
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path contains no spaces nor
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.B /
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characters (such as
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.BR :usr:local:man ),
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it is assumed to be a single path, not a list of paths.
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If spaces are used as delimiters, remember to quote them from the
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shell.
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.IP "\fB\-m\fP \fIpath\fP"
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Augment the list of standard directories
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.BR apropos
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or
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.BR whatis
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search for its database.
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The supplied
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.I path
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must be a colon\- or space\-delimited list of directories.
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These directories will be searched after the standard directories
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or the directories supplied by the
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.BR MANPATH
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environment variable are searched.
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If spaces are used as delimiters, remember to quote them from the
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shell.
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.IP \fB-n\fP
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Normally, in addition to searching the various
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.BR whatis
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databases,
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.BR apropos
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and
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.BR whatis
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will also search the Orca shell
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.BR 15/syscmnd
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file. Specifying the
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.BR -n
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flag will keep
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.BR apropos
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and
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.BR whatis
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from searching this file.
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.IP \fB-V\fP
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Show version information.
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.SH ENVIRONMENT
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.IP \fBMANPATH\fP
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If set,
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its value overrides
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.B /usr/man
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as the list of directories where
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.BR apropos
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and
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.BR whatis
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search for their databases.
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(The
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.B \-M
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flag, in turn, overrides this value.)
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See the description of the
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.B \-M
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flag for syntax details.
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.IP \fBUSRMAN\fP
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If
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.B MANPATH
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is not set, then the value of
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.B USRMAN
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(if set) overrides
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.B /usr/man
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as the list of directories where
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.BR apropos
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and
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.BR whatis
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search for their databases.
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(The
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.B \-M
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flag, in turn, overrides this value.)
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See the description of the
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.B \-M
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flag for syntax details.
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.IP \fBMANDIR\fP
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If neither
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.B MANPATH
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nor
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.B USRMAN
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is set, then the value of
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.B MANDIR
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(if set) overrides
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.B /usr/man
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as the list of directories where
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.BR apropos
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and
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.BR whatis
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search for their databases.
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(The
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.B \-M
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flag, in turn, overrides this value.)
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See the description of the
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.B \-M
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flag for syntax details.
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.SH VERSION
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This manual page documents
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.BR apropos
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and
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.BR whatis
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versions 3.1.
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.SH FILES
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.\" .IP \fB/usr/\fR[\fBshare/\fR]\fBman/whatis\fR
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.BR /usr/ [ share/ ] man/whatis " \-"
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The
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.BR whatis (1)
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database.
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.SH SEE ALSO
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.BR man (1),
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.BR whereis (1),
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.BR catman (8),
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.BR makewhatis (8)
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.SH HISTORY
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The GNO version of
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.BR apropos
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first appeared in GNO version 1.0 and was written by Mike Horwath.
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This version was rewritten from scratch by Devin Reade.
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