version 1, including all changes.
.
Rev |
Author |
# |
Line |
1 |
perry |
1 |
LESSKEY |
|
|
2 |
!!!LESSKEY |
|
|
3 |
NAME |
|
|
4 |
SYNOPSIS |
|
|
5 |
DESCRIPTION |
|
|
6 |
COMMAND SECTION |
|
|
7 |
EXAMPLE |
|
|
8 |
PRECEDENCE |
|
|
9 |
LINE EDITING SECTION |
|
|
10 |
EXAMPLE |
|
|
11 |
LESS ENVIRONMENT VARIABLES |
|
|
12 |
EXAMPLE |
|
|
13 |
SEE ALSO |
|
|
14 |
WARNINGS |
|
|
15 |
COPYRIGHT |
|
|
16 |
AUTHOR |
|
|
17 |
---- |
|
|
18 |
!!NAME |
|
|
19 |
|
|
|
20 |
|
|
|
21 |
lesskey - specify key bindings for less |
|
|
22 |
!!SYNOPSIS |
|
|
23 |
|
|
|
24 |
|
|
|
25 |
__lesskey [[-o output] [[--] [[input] |
|
|
26 |
lesskey [[--output=output] [[--] [[input] |
|
|
27 |
lesskey -V |
|
|
28 |
lesskey --version__ |
|
|
29 |
!!DESCRIPTION |
|
|
30 |
|
|
|
31 |
|
|
|
32 |
''Lesskey'' is used to specify a set of key bindings to |
|
|
33 |
be used by ''less.'' The input file is a text file which |
|
|
34 |
describes the key bindings, If the input file is |
|
|
35 |
''less.'' If no output file is specified, and the |
|
|
36 |
environment variable LESSKEY is set, the value of LESSKEY is |
|
|
37 |
used as the name of the output file. Otherwise, a standard |
|
|
38 |
filename is used as the name of the output file, which |
|
|
39 |
depends on the system being used: On Unix and OS-9 systems, |
|
|
40 |
$HOME/.less is used; on MS-DOS systems, $HOME/_less is used; |
|
|
41 |
and on OS/2 systems, $HOME/less.ini is used, or |
|
|
42 |
$INIT/less.ini if $HOME is undefined. If the output file |
|
|
43 |
already exists, ''lesskey'' will overwrite |
|
|
44 |
it. |
|
|
45 |
|
|
|
46 |
|
|
|
47 |
The -V or --version option causes ''lesskey'' to print |
|
|
48 |
its version number and immediately exit. If -V or --version |
|
|
49 |
is present, other options and arguments are |
|
|
50 |
ignored. |
|
|
51 |
|
|
|
52 |
|
|
|
53 |
The input file consists of one or more ''sections.'' Each |
|
|
54 |
section starts with a line that identifies the type of |
|
|
55 |
section. Possible sections are: |
|
|
56 |
|
|
|
57 |
|
|
|
58 |
#command |
|
|
59 |
|
|
|
60 |
|
|
|
61 |
Defines new command keys. |
|
|
62 |
|
|
|
63 |
|
|
|
64 |
#line-edit |
|
|
65 |
|
|
|
66 |
|
|
|
67 |
Defines new line-editing keys. |
|
|
68 |
|
|
|
69 |
|
|
|
70 |
#env |
|
|
71 |
|
|
|
72 |
|
|
|
73 |
Defines environment variables. |
|
|
74 |
|
|
|
75 |
|
|
|
76 |
Blank lines and lines which start with a pound sign (#) are |
|
|
77 |
ignored, except for the special section header |
|
|
78 |
lines. |
|
|
79 |
!!COMMAND SECTION |
|
|
80 |
|
|
|
81 |
|
|
|
82 |
The command section begins with the line |
|
|
83 |
|
|
|
84 |
|
|
|
85 |
#command |
|
|
86 |
|
|
|
87 |
|
|
|
88 |
If the command section is the first section in the file, |
|
|
89 |
this line may be omitted. The command section consists of |
|
|
90 |
lines of the form: |
|
|
91 |
|
|
|
92 |
|
|
|
93 |
''string'' ''action'' |
|
|
94 |
[[extra-string] '' |
|
|
95 |
|
|
|
96 |
|
|
|
97 |
Whitespace is any sequence of one or more spaces and/or |
|
|
98 |
tabs. The ''string'' is the command key(s) which invoke |
|
|
99 |
the action. The ''string'' may be a single command key, |
|
|
100 |
or a sequence of up to 15 keys. The ''action'' is the |
|
|
101 |
name of the less action, from the list below. The characters |
|
|
102 |
in the ''string'' may appear literally, or be prefixed by |
|
|
103 |
a caret to indicate a control key. A backslash followed by |
|
|
104 |
one to three octal digits may be used to specify a character |
|
|
105 |
by its octal value. A backslash followed by certain |
|
|
106 |
characters specifies input characters as |
|
|
107 |
follows: |
|
|
108 |
|
|
|
109 |
|
|
|
110 |
b |
|
|
111 |
|
|
|
112 |
|
|
|
113 |
BACKSPACE |
|
|
114 |
|
|
|
115 |
|
|
|
116 |
e |
|
|
117 |
|
|
|
118 |
|
|
|
119 |
ESCAPE |
|
|
120 |
|
|
|
121 |
|
|
|
122 |
n |
|
|
123 |
|
|
|
124 |
|
|
|
125 |
NEWLINE |
|
|
126 |
|
|
|
127 |
|
|
|
128 |
r |
|
|
129 |
|
|
|
130 |
|
|
|
131 |
RETURN |
|
|
132 |
|
|
|
133 |
|
|
|
134 |
t |
|
|
135 |
|
|
|
136 |
|
|
|
137 |
TAB |
|
|
138 |
|
|
|
139 |
|
|
|
140 |
ku |
|
|
141 |
|
|
|
142 |
|
|
|
143 |
UP ARROW |
|
|
144 |
|
|
|
145 |
|
|
|
146 |
kd |
|
|
147 |
|
|
|
148 |
|
|
|
149 |
DOWN ARROW |
|
|
150 |
|
|
|
151 |
|
|
|
152 |
kr |
|
|
153 |
|
|
|
154 |
|
|
|
155 |
RIGHT ARROW |
|
|
156 |
|
|
|
157 |
|
|
|
158 |
kl |
|
|
159 |
|
|
|
160 |
|
|
|
161 |
LEFT ARROW |
|
|
162 |
|
|
|
163 |
|
|
|
164 |
kU |
|
|
165 |
|
|
|
166 |
|
|
|
167 |
PAGE UP |
|
|
168 |
|
|
|
169 |
|
|
|
170 |
kD |
|
|
171 |
|
|
|
172 |
|
|
|
173 |
PAGE DOWN |
|
|
174 |
|
|
|
175 |
|
|
|
176 |
kh |
|
|
177 |
|
|
|
178 |
|
|
|
179 |
HOME |
|
|
180 |
|
|
|
181 |
|
|
|
182 |
ke |
|
|
183 |
|
|
|
184 |
|
|
|
185 |
END |
|
|
186 |
|
|
|
187 |
|
|
|
188 |
kx |
|
|
189 |
|
|
|
190 |
|
|
|
191 |
DELETE |
|
|
192 |
|
|
|
193 |
|
|
|
194 |
A backslash followed by any other character indicates that |
|
|
195 |
character is to be taken literally. Characters which must be |
|
|
196 |
preceded by backslash include caret, space, tab and the |
|
|
197 |
backslash itself. |
|
|
198 |
|
|
|
199 |
|
|
|
200 |
An action may be followed by an |
|
|
201 |
less,'' |
|
|
202 |
the action is performed, and then the extra string is |
|
|
203 |
parsed, just as if it were typed in to ''less.'' This |
|
|
204 |
feature can be used in certain cases to extend the |
|
|
205 |
functionality of a command. For example, see the |
|
|
206 |
''less'' quits, first |
|
|
207 |
character of the extra string is used as its exit |
|
|
208 |
status. |
|
|
209 |
!!EXAMPLE |
|
|
210 |
|
|
|
211 |
|
|
|
212 |
The following input file describes the set of default |
|
|
213 |
command keys used by less: |
|
|
214 |
|
|
|
215 |
|
|
|
216 |
#command |
|
|
217 |
r forw-line |
|
|
218 |
n forw-line |
|
|
219 |
e forw-line |
|
|
220 |
j forw-line |
|
|
221 |
kd forw-line |
|
|
222 |
^E forw-line |
|
|
223 |
^N forw-line |
|
|
224 |
k back-line |
|
|
225 |
y back-line |
|
|
226 |
^Y back-line |
|
|
227 |
^K back-line |
|
|
228 |
^P back-line |
|
|
229 |
J forw-line-force |
|
|
230 |
K back-line-force |
|
|
231 |
Y back-line-force |
|
|
232 |
d forw-scroll |
|
|
233 |
^D forw-scroll |
|
|
234 |
u back-scroll |
|
|
235 |
^U back-scroll |
|
|
236 |
40 forw-screen |
|
|
237 |
f forw-screen |
|
|
238 |
^F forw-screen |
|
|
239 |
^V forw-screen |
|
|
240 |
kD forw-screen |
|
|
241 |
b back-screen |
|
|
242 |
^B back-screen |
|
|
243 |
ev back-screen |
|
|
244 |
kU back-screen |
|
|
245 |
z forw-window |
|
|
246 |
w back-window |
|
|
247 |
e40 forw-screen-force |
|
|
248 |
F forw-forever |
|
|
249 |
R repaint-flush |
|
|
250 |
r repaint |
|
|
251 |
^R repaint |
|
|
252 |
^L repaint |
|
|
253 |
eu undo-hilite |
|
|
254 |
g goto-line |
|
|
255 |
kh goto-line |
|
|
256 |
!!PRECEDENCE |
|
|
257 |
|
|
|
258 |
|
|
|
259 |
Commands specified by ''lesskey'' take precedence over |
|
|
260 |
the default commands. A default command key may be disabled |
|
|
261 |
by including it in the input file with the action |
|
|
262 |
''less'' will give an error beep for an |
|
|
263 |
'' |
|
|
264 |
|
|
|
265 |
|
|
|
266 |
#stop |
|
|
267 |
|
|
|
268 |
|
|
|
269 |
This will cause all default commands to be ignored. The |
|
|
270 |
#stop line should be the last line in that section of the |
|
|
271 |
file. |
|
|
272 |
|
|
|
273 |
|
|
|
274 |
Be aware that #stop can be dangerous. Since all default |
|
|
275 |
commands are disabled, you must provide sufficient commands |
|
|
276 |
before the #stop line to enable all necessary actions. For |
|
|
277 |
example, failure to provide a |
|
|
278 |
!!LINE EDITING SECTION |
|
|
279 |
|
|
|
280 |
|
|
|
281 |
The line-editing section begins with the line: |
|
|
282 |
|
|
|
283 |
|
|
|
284 |
#line-edit |
|
|
285 |
|
|
|
286 |
|
|
|
287 |
This section specifies new key bindings for the line editing |
|
|
288 |
commands, in a manner similar to the way key bindings for |
|
|
289 |
ordinary commands are specified in the #command section. The |
|
|
290 |
line-editing section consists of a list of keys and actions, |
|
|
291 |
one per line as in the example below. |
|
|
292 |
!!EXAMPLE |
|
|
293 |
|
|
|
294 |
|
|
|
295 |
The following input file describes the set of default |
|
|
296 |
line-editing keys used by less: |
|
|
297 |
|
|
|
298 |
|
|
|
299 |
#line-edit |
|
|
300 |
t forw-complete |
|
|
301 |
17 back-complete |
|
|
302 |
et back-complete |
|
|
303 |
^L expand |
|
|
304 |
^V literal |
|
|
305 |
^A literal |
|
|
306 |
el right |
|
|
307 |
kr right |
|
|
308 |
eh left |
|
|
309 |
kl left |
|
|
310 |
eb word-left |
|
|
311 |
ekl word-left |
|
|
312 |
ew word-right |
|
|
313 |
ekr word-right |
|
|
314 |
ei insert |
|
|
315 |
ex delete |
|
|
316 |
kx delete |
|
|
317 |
eX word-delete |
|
|
318 |
ekx word-delete |
|
|
319 |
eb word-backspace |
|
|
320 |
e0 home |
|
|
321 |
kh home |
|
|
322 |
e$ end |
|
|
323 |
ke end |
|
|
324 |
ek up |
|
|
325 |
ku up |
|
|
326 |
ej down |
|
|
327 |
!!LESS ENVIRONMENT VARIABLES |
|
|
328 |
|
|
|
329 |
|
|
|
330 |
The environment variable section begins with the |
|
|
331 |
line |
|
|
332 |
|
|
|
333 |
|
|
|
334 |
#env |
|
|
335 |
|
|
|
336 |
|
|
|
337 |
Following this line is a list of environment variable |
|
|
338 |
assignments. Each line consists of an environment variable |
|
|
339 |
name, an equals sign (=) and the value to be assigned to the |
|
|
340 |
environment variable. White space before and after the |
|
|
341 |
equals sign is ignored. Variables assigned in this way are |
|
|
342 |
visible only to ''less.'' If a variable is specified in |
|
|
343 |
the system environment and also in a lesskey file, the value |
|
|
344 |
in the lesskey file takes precedence. Although the lesskey |
|
|
345 |
file can be used to override variables set in the |
|
|
346 |
environment, the main purpose of assigning variables in the |
|
|
347 |
lesskey file is simply to have all ''less'' configuration |
|
|
348 |
information stored in one file. |
|
|
349 |
!!EXAMPLE |
|
|
350 |
|
|
|
351 |
|
|
|
352 |
The following input file sets the -i option whenever |
|
|
353 |
''less'' is run, and specifies the character set to be |
|
|
354 |
'' |
|
|
355 |
|
|
|
356 |
|
|
|
357 |
#env |
|
|
358 |
LESS = -i |
|
|
359 |
LESSCHARSET = latin1 |
|
|
360 |
!!SEE ALSO |
|
|
361 |
|
|
|
362 |
|
|
|
363 |
less(1) |
|
|
364 |
!!WARNINGS |
|
|
365 |
|
|
|
366 |
|
|
|
367 |
It is not possible to specify special keys, such as uparrow, |
|
|
368 |
in a keyboard-independent manner. The only way to specify |
|
|
369 |
such keys is to specify the escape sequence which a |
|
|
370 |
particular keyboard sends when such a keys is |
|
|
371 |
pressed. |
|
|
372 |
|
|
|
373 |
|
|
|
374 |
On MS-DOS and OS/2 systems, certain keys send a sequence of |
|
|
375 |
characters which start with a NUL character (0). This NUL |
|
|
376 |
character should be represented as 340 in a lesskey |
|
|
377 |
file. |
|
|
378 |
!!COPYRIGHT |
|
|
379 |
|
|
|
380 |
|
|
|
381 |
Copyright (C) 2000 Mark Nudelman |
|
|
382 |
|
|
|
383 |
|
|
|
384 |
lesskey is part of the GNU project and is free software; you |
|
|
385 |
can redistribute it and/or modify it under the terms of the |
|
|
386 |
GNU General Public License as published by the Free Software |
|
|
387 |
Foundation; either version 2, or (at your option) any later |
|
|
388 |
version. |
|
|
389 |
|
|
|
390 |
|
|
|
391 |
lesskey is distributed in the hope that it will be useful, |
|
|
392 |
but WITHOUT ANY WARRANTY; without even the implied warranty |
|
|
393 |
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
|
|
394 |
the GNU General Public License for more |
|
|
395 |
details. |
|
|
396 |
|
|
|
397 |
|
|
|
398 |
You should have received a copy of the GNU General Public |
|
|
399 |
License along with lesskey; see the file COPYING. If not, |
|
|
400 |
write to the Free Software Foundation, 59 Temple Place, |
|
|
401 |
Suite 330, Boston, MA 02111-1307, USA. |
|
|
402 |
!!AUTHOR |
|
|
403 |
|
|
|
404 |
|
|
|
405 |
Mark Nudelman |
|
|
406 |
Send bug reports or comments to the above address or to |
|
|
407 |
bug-less@gnu.org. |
|
|
408 |
---- |