usr/src/usr.bin/more/lesskey.1

.\"
.\" Copyright (c) 1988 Mark Nudleman
.\" Copyright (c) 1988 Regents of the University of California.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms are permitted
.\" provided that the above copyright notice and this paragraph are
.\" duplicated in all such forms and that any documentation,
.\" advertising materials, and other materials related to such
.\" distribution and use acknowledge that the software was developed
.\" by Mark Nudleman and the University of California, Berkeley.  The
.\" name of Mark Nudleman or the
.\" University may not be used to endorse or promote products derived
.\" from this software without specific prior written permission.
.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
.\" WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
.\"
.\"     @(#)lesskey.1   5.2 (Berkeley) %G%
.\"
.TH LESSKEY 1
.SH NAME
lesskey \- specify key bindings for less
.SH SYNOPSIS
.B "lesskey [-o output] [input]"
.SH DESCRIPTION
.I Lesskey
is used to specify a set of key bindings to be used by
.I less.
The input file is a text file which describes the key bindings,
and the output file is a binary file which is used by
.I less.
If no input file is specified, standard input is used.
If no output file is specified, $HOME/.less is used.
.PP
The input file consists of lines of the form:
.sp
        string <whitespace> action <newline>
.sp
Whitespace is any sequence of one or more spaces and/or tabs.
The "string" is the command key(s) which invoke the action.
The string may be a single command key, or a sequence of up to 15 keys.
The "action" is the name of the less action, from the list below.
The characters in the "string" may appear literally, or be
prefixed by a carat to indicate a control key.
A backslash may be used to cause the following character
to be taken literally.
Characters which must be preceeded by backslash include
carat, space, tab and the backslash itself.
A backslash followed by one to three octal digits may be used to
specify a character by its octal value.
Blank lines and lines which start with a pound sign (#) are ignored.
.PP
As an example, the following input file describes the set of
default command keys used by less:
.sp
.nf
        k                       back-line
        y                       back-line
        ^K                      back-line
        ^Y                      back-line
        ^P                      back-line
        b                       back-screen
        ^B                      back-screen
        \\33v                   back-screen
        u                       back-scroll
        ^U                      back-scroll
        ?                       back-search
        E                       examine
        ^X^V                    examine
        +                       first-cmd
        e                       forw-line
        j                       forw-line
        ^E                      forw-line
        ^J                      forw-line
        ^M                      forw-line
        ^N                      forw-line
        f                       forw-screen
        ^F                      forw-screen
        \\40                    forw-screen
        ^V                      forw-screen
        d                       forw-scroll
        ^D                      forw-scroll
        /                       forw-search
        G                       goto-end
        >                       goto-end
        \\33>                   goto-end
        g                       goto-line
        <                       goto-line
        \\33<                   goto-line
        '                       goto-mark
        ^X^X                    goto-mark
        H                       help
        N                       next-file
        %                       percent
        p                       percent
        P                       prev-file
        q                       quit
        ZZ                      quit
        ^L                      repaint
        ^R                      repaint
        r                       repaint
        R                       flush-repaint
        n                       repeat-search
        m                       set-mark
        !                       shell
        =                       status
        ^G                      status
        -                       toggle-option
        _                       display-option
        V                       version
        v                       visual
.fi
.sp
Commands specified by
.I lesskey
take precedence over the default commands.
A default command key may be disabled by including it in the
key file with the action "invalid".

.SH "SEE ALSO"
less(1)