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-
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- LESSKEY(1) USER COMMANDS LESSKEY(1)
-
-
-
- NAME
- lesskey - specify key bindings for less
-
- SYNOPSIS
- lesskey [-o output] [input]
- lesskey -V
-
- DESCRIPTION
- _L_e_s_s_k_e_y is used to specify a set of key bindings to be used
- by _l_e_s_s. The input file is a text file which describes the
- key bindings, If the input file is "-", standard input is
- read. If no input file is specified, $HOME/.lesskey is
- read. The output file is a binary file which is used by
- _l_e_s_s. If no output file is specified, $HOME/.less is writ-
- ten. If the output file already exists, _l_e_s_s_k_e_y will
- overwrite it.
-
- The input file consists of lines of the form:
-
- _s_t_r_i_n_g <whitespace> _a_c_t_i_o_n [extra-string] <newline>
-
- Whitespace is any sequence of one or more spaces and/or
- tabs. The _s_t_r_i_n_g is the command key(s) which invoke the
- action. The _s_t_r_i_n_g may be a single command key, or a
- sequence of up to 15 keys. The _a_c_t_i_o_n is the name of the
- less action, from the list below. The characters in the
- _s_t_r_i_n_g may appear literally, or be prefixed by a caret to
- indicate a control key. A backslash followed by one to
- three octal digits may be used to specify a character by its
- octal value. A backslash followed by b, e, n, r or t speci-
- fies BACKSPACE, ESCAPE, NEWLINE, RETURN or TAB, respec-
- tively. A backslash followed by any other character indi-
- cates that character is to be taken literally. Characters
- which must be preceded by backslash include caret, space,
- tab and the backslash itself. Blank lines and lines which
- start with a pound sign (#) are ignored.
-
- An action may be followed by an "extra" string. When such a
- command is entered while running _l_e_s_s, the action is per-
- formed, and then the extra string is parsed, just as if it
- were typed in to _l_e_s_s. This feature can be used in certain
- cases to extend the functionality of a command. For exam-
- ple, see the "{" and ":t" commands in the example below.
-
- The -V flag causes _l_e_s_s_k_e_y to print its version number and
- immediately exit. Other flags and arguments are ignored.
-
-
- EXAMPLE
- The following input file describes the set of default com-
- mand keys used by less:
-
-
-
-
- 1
-
-
-
-
-
-
- LESSKEY(1) USER COMMANDS LESSKEY(1)
-
-
-
- \r forw-line
- \n forw-line
- e forw-line
- j forw-line
- ^E forw-line
- ^N forw-line
- k back-line
- y back-line
- ^Y back-line
- ^K back-line
- ^P back-line
- J forw-line-force
- K back-line-force
- Y back-line-force
- d forw-scroll
- ^D forw-scroll
- u back-scroll
- ^U back-scroll
- \40 forw-screen
- f forw-screen
- ^F forw-screen
- ^V forw-screen
- b back-screen
- ^B back-screen
- \ev back-screen
- z forw-window
- w back-window
- F forw-forever
- R repaint-flush
- r repaint
- ^R repaint
- ^L repaint
- g goto-line
- < goto-line
- \e< goto-line
- p percent
- % percent
- { forw-bracket {}
- } back-bracket {}
- ( forw-bracket ()
- ) back-bracket ()
- [ forw-bracket []
- ] back-bracket []
- \e^F forw-bracket
- \e^B back-bracket
- G goto-end
- \e> goto-end
- > goto-end
- = status
- ^G status
- :f status
- / forw-search
-
-
-
- 2
-
-
-
-
-
-
- LESSKEY(1) USER COMMANDS LESSKEY(1)
-
-
-
- ? back-search
- \e/ forw-search *
- \e? back-search *
- n repeat-search
- \en repeat-search-all
- N reverse-search
- \eN reverse-search-all
- \u undo-hilite
- m set-mark
- ' goto-mark
- ^X^X goto-mark
- E examine
- :e examine
- ^X^V examine
- :n next-file
- :p prev-file
- :x index-file
- - toggle-option
- :t toggle-option t
- s toggle-option o
- _ display-option
- | pipe
- v visual
- ! shell
- + firstcmd
- H help
- h help
- V version
- q quit
- :q quit
- :Q quit
- ZZ quit
-
-
- PRECEDENCE
- Commands specified by _l_e_s_s_k_e_y take precedence over the
- default commands. A default command key may be disabled by
- including it in the input file with the action "invalid".
- Alternatively, a key may be defined to do nothing by using
- the action "noaction". "noaction" is similar to "invalid",
- but _l_e_s_s will give an error beep for an "invalid" command,
- but not for a "noaction" command. In addition, ALL default
- commands may be disabled by adding this control line to the
- input file:
-
- #stop
-
- This will cause all default commands to be ignored. The
- #stop line should be the last line in that section of the
- file. (Another section, introduced by #line-edit, may fol-
- low the #stop line.)
-
-
-
-
- 3
-
-
-
-
-
-
- LESSKEY(1) USER COMMANDS LESSKEY(1)
-
-
-
- Be aware that #stop can be dangerous. Since all default com-
- mands are disabled, you must provide sufficient commands
- before the #stop line to enable all necessary actions. For
- example, failure to provide a "quit" command can lead to
- frustration.
-
-
- LINE EDITING
- New key bindings may be specified for the line editing com-
- mands, in a manner similar to the way key bindings for ordi-
- nary commands are specified. This control line marks the
- beginning of a section of line-editing commands:
-
- #line-edit
-
- Following this line is a list of keys and actions, one per
- line as in the example below.
-
-
- EXAMPLE
- The following input file describes the set of default line-
- editing keys used by less:
-
- #line-edit
- \t forw-complete
- \17 back-complete
- \e\t back-complete
- \14 expand
- ^V literal
- ^A literal
- \el right
- \eh left
- \eb word-left
- \ew word-right
- \ei insert
- \ex delete
- \e\b word-backspace
- \e0 home
- \e$ end
- \ek up
- \ej down
-
-
-
- SEE ALSO
- less(1)
-
-
- COPYRIGHT
- Copyright (c) 1984,1985,1989,1994 Mark Nudelman
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- 4
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