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1 .\" See section COPYING for copyright and redistribution information.
2 .TH EMACS 1 "2007 April 13" "GNU Emacs 25.0.50"
3 .
4 .
5 .SH NAME
6 emacs \- GNU project Emacs
7 .
8 .
9 .SH SYNOPSIS
10 .B emacs
11 [
12 .I command-line switches
13 ] [
14 .I files ...\&
15 ]
16 .
17 .
18 .SH DESCRIPTION
19 .I GNU Emacs
20 is a version of
21 .IR Emacs ,
22 written by the author of the original (PDP-10)
23 .IR Emacs ,
24 Richard Stallman.
25 The user functionality of GNU Emacs encompasses everything other
26 editors do, and it is easily extensible since its editing commands are
27 written in Lisp.
28 .PP
29 The primary documentation of GNU Emacs is in the GNU Emacs Manual,
30 which you can read using Info, either from Emacs or as a standalone
31 program.
32 Please look there for complete and up-to-date documentation.
33 This man page is updated only when someone volunteers to do so.
34 .PP
35 .I Emacs
36 has an extensive interactive help facility,
37 but the facility assumes that you know how to manipulate
38 .I Emacs
39 windows and buffers.
40 CTRL-h or F1 enters the Help facility.
41 Help Tutorial (CTRL-h t) starts an interactive tutorial to quickly
42 teach beginners the fundamentals of
43 .I Emacs.
44 Help Apropos (CTRL-h a) helps you find a command with a name matching
45 a given pattern, Help Key (CTRL-h k) describes a given key sequence,
46 and Help Function (CTRL-h f) describes a given Lisp function.
47 .PP
48 .IR "GNU Emacs" 's
49 many special packages handle mail reading (RMail) and sending (Mail),
50 outline editing (Outline), compiling (Compile), running subshells
51 within
52 .I Emacs
53 windows (Shell), running a Lisp read-eval-print loop
54 (Lisp-Interaction-Mode), automated psychotherapy (Doctor), and much more.
55 .
56 .SS Emacs Options
57 The following options are of general interest:
58 .RS
59 .TP 8
60 .I file
61 Edit
62 .IR file .
63 .TP
64 .BI \-\-file " file\fR,\fP " \-\-find-file " file\fR,\fP " \-\-visit " file"
65 The same as specifying
66 .I file
67 directly as an argument.
68 .TP
69 .BI + number
70 Go to the line specified by
71 .I number
72 (do not insert a space between the "+" sign and
73 the number).
74 This applies only to the next file specified.
75 .TP
76 .BI + line:column
77 Go to the specified
78 .I line
79 and
80 .IR column .
81 .TP
82 .BI \-\-chdir " directory"
83 Change to
84 .IR directory .
85 .TP
86 .BR \-q ", " \-\-no\-init\-file
87 Do not load an init file.
88 .TP
89 .BR \-nl ", " \-\-no\-shared\-memory
90 Do not use shared memory.
91 .TP
92 .B \-\-no\-site\-file
93 Do not load the site-wide startup file.
94 .TP
95 .BR \-nsl ", " \-\-no\-site\-lisp
96 Do not add site-lisp directories to load-path.
97 .TP
98 .B \-\-no\-desktop
99 Do not load a saved desktop.
100 .TP
101 .BR \-Q ", " \-\-quick
102 Similar to "\-q \-\-no\-site\-file \-\-no\-splash". Also, avoid
103 processing X resources.
104 .TP
105 .B \-\-no\-splash
106 Do not display a splash screen during start-up.
107 .TP
108 .B \-\-debug\-init
109 Enable
110 .I Emacs
111 Lisp debugger during the processing of the user init file
112 .BR ~/.emacs .
113 This is useful for debugging problems in the init file.
114 .TP
115 .BI \-u " user\fR,\fP " \-\-user " user"
116 Load
117 .IR user 's
118 init file.
119 .TP
120 .BI \-t " file\fR,\fP " \-\-terminal " file"
121 Use specified
122 .I file
123 as the terminal instead of using stdin/stdout.
124 This must be the first argument specified in the command line.
125 .TP
126 .B \-\-daemon
127 Start Emacs as a daemon, enabling the Emacs server and disconnecting
128 from the terminal. You can then use the emacsclient command to
129 connect to the server (see
130 .BR emacsclient (1)).
131 .TP
132 .B \-\-version
133 Display
134 .I Emacs
135 version information and exit.
136 .TP
137 .B \-\-help
138 Display this help and exit.
139 .RE
140 .PP
141 The following options are Lisp-oriented
142 (these options are processed in the order encountered):
143 .RS
144 .TP 8
145 .BI \-f " function\fR,\fP " \-\-funcall " function"
146 Execute the lisp function
147 .IR function .
148 .TP
149 .BI \-l " file\fR,\fP " \-\-load " file"
150 Load the lisp code in the file
151 .IR file .
152 .TP
153 .BI \-\-eval " expr\fR,\fP " \-\-execute " expr"
154 Evaluate the Lisp expression
155 .IR expr .
156 .RE
157 .PP
158 The following options are useful when running
159 .I Emacs
160 as a batch editor:
161 .RS
162 .TP 8
163 .B \-\-batch
164 Edit in batch mode.
165 The editor will send messages to stderr.
166 You must use \-l and \-f options to specify files to execute
167 and functions to call.
168 .TP
169 .BI \-\-script " file"
170 Run
171 .I file
172 as an Emacs Lisp script.
173 .TP
174 .BI \-\-insert " file"
175 Insert contents of
176 .I file
177 into the current buffer.
178 .TP
179 .B \-\-kill
180 Exit
181 .I Emacs
182 while in batch mode.
183 .TP
184 .BI \-L " dir\fR,\fP " \-\-directory " dir"
185 Add
186 .I dir
187 to the list of directories
188 .I Emacs
189 searches for Lisp files.
190 .RE
191 .
192 .\" START DELETING HERE IF YOU'RE NOT USING X
193 .SS Using Emacs with X
194 .I Emacs
195 has been tailored to work well with the X window system.
196 If you run
197 .I Emacs
198 from under X windows, it will create its own X window to
199 display in.
200 You will probably want to start the editor as a background
201 process so that you can continue using your original window.
202 .PP
203 .I Emacs
204 can be started with the following X switches:
205 .RS
206 .TP 8
207 .BI \-\-name " name"
208 Specify the name which should be assigned to the initial
209 .I Emacs
210 window.
211 This controls looking up X resources as well as the window title.
212 .TP
213 .BI \-T " name\fR,\fP " \-\-title " name"
214 Specify the title for the initial X window.
215 .TP
216 .BR \-r ", " \-rv ", " \-\-reverse\-video
217 Display the
218 .I Emacs
219 window in reverse video.
220 .TP
221 .BI \-fn " font\fR,\fP " \-\-font " font"
222 Set the
223 .I Emacs
224 window's font to that specified by
225 .IR font .
226 You will find the various
227 .I X
228 fonts in the
229 .I /usr/lib/X11/fonts
230 directory.
231 Note that
232 .I Emacs
233 will only accept fixed width fonts.
234 Under the X11 Release 4 font-naming conventions, any font with the
235 value "m" or "c" in the eleventh field of the font name is a fixed
236 width font.
237 Furthermore, fonts whose name are of the form
238 .IR width x height
239 are generally fixed width, as is the font
240 .IR fixed .
241 See
242 .BR xlsfonts (1)
243 for more information.
245 When you specify a font, be sure to put a space between the
246 switch and the font name.
247 .TP
248 .BI \-\-xrm " resources"
249 Set additional X resources.
250 .TP
251 .BI "\-\-color\fR,\fP \-\-color=" mode
252 Override color mode for character terminals;
253 .I mode
254 defaults to `auto', and can also be `never', `auto', `always',
255 or a mode name like `ansi8'.
256 .TP
257 .BI \-bw " pixels\fR,\fP " \-\-border\-width " pixels"
258 Set the
259 .I Emacs
260 window's border width to the number of pixels specified by
261 .IR pixels .
262 Defaults to one pixel on each side of the window.
263 .TP
264 .BI \-ib " pixels\fR,\fP " \-\-internal\-border " pixels"
265 Set the window's internal border width to the number of pixels specified
266 by
267 .IR pixels .
268 Defaults to one pixel of padding on each side of the window.
269 .TP
270 .BI \-g " geometry\fR,\fP " \-\-geometry " geometry"
271 Set the
272 .I Emacs
273 window's width, height, and position as specified.
274 The geometry specification is in the standard X format; see
275 .BR X (7)
276 for more information.
277 The width and height are specified in characters; the default is
278 80 by 24.
279 See the Emacs manual, section "Options for Window Size and Position",
280 for information on how window sizes interact
281 with selecting or deselecting the tool bar and menu bar.
282 .TP
283 .BI \-lsp " pixels\fR,\fP " \-\-line\-spacing " pixels"
284 Additional space to put between lines.
285 .TP
286 .BR \-vb ", " \-\-vertical\-scroll\-bars
287 Enable vertical scrollbars.
288 .TP
289 .BR \-fh ", " \-\-fullheight
290 Make the first frame as high as the screen.
291 .TP
292 .BR \-fs ", " \-\-fullscreen
293 Make the first frame fullscreen.
294 .TP
295 .BR \-fw ", " \-\-fullwidth
296 Make the first frame as wide as the screen.
297 .TP
298 .BR \-mm ", " \-\-maximized
299 Maximize the first frame, like "\-fw \-fh".
300 .TP
301 .BI \-fg " color\fR,\fP " \-\-foreground\-color " color"
302 On color displays, set the color of the text.
304 Use the command
305 .I M\-x list\-colors\-display
306 for a list of valid color names.
307 .TP
308 .BI \-bg " color\fR,\fP " \-\-background\-color " color"
309 On color displays, set the color of the window's background.
310 .TP
311 .BI \-bd " color\fR,\fP " \-\-border\-color " color"
312 On color displays, set the color of the window's border.
313 .TP
314 .BI \-cr " color\fR,\fP " \-\-cursor\-color " color"
315 On color displays, set the color of the window's text cursor.
316 .TP
317 .BI \-ms " color\fR,\fP " \-\-mouse\-color " color"
318 On color displays, set the color of the window's mouse cursor.
319 .TP
320 .BI \-d " displayname\fR,\fP " \-\-display " displayname"
321 Create the
322 .I Emacs
323 window on the display specified by
324 .IR displayname .
325 Must be the first option specified in the command line.
326 .TP
327 .BR \-nbi ", " \-\-no\-bitmap\-icon
328 Do not use picture of gnu for Emacs icon.
329 .TP
330 .B \-\-iconic
331 Start
332 .I Emacs
333 in iconified state.
334 .TP
335 .BR \-nbc ", " \-\-no\-blinking\-cursor
336 Disable blinking cursor.
337 .TP
338 .BI \-\-parent-id " xid"
339 Set parent window.
340 .TP
341 .BR \-nw ", " \-\-no\-window\-system
342 Tell
343 .I Emacs
344 not to create a graphical frame.
345 If you use this switch when invoking
346 .I Emacs
347 from an
348 .BR xterm (1)
349 window, display is done in that window.
350 .TP
351 .BR \-D ", " \-\-basic\-display
352 This option disables many display features; use it for
353 debugging Emacs.
354 .RE
355 .PP
356 You can set
357 .I X
358 default values for your
359 .I Emacs
360 windows in your
361 .I \.Xresources
362 file (see
363 .BR xrdb (1)).
364 Use the following format:
365 .IP
366 .RI emacs. keyword : value
367 .PP
368 where
369 .I value
370 specifies the default value of
371 .IR keyword .
372 .I Emacs
373 lets you set default values for the following keywords:
374 .RS
375 .TP 8
376 .BR background " (class " Background )
377 For color displays,
378 sets the window's background color.
379 .TP
380 .BR bitmapIcon " (class " BitmapIcon )
381 If
382 .BR bitmapIcon 's
383 value is set to
384 .IR on ,
385 the window will iconify into the "kitchen sink."
386 .TP
387 .BR borderColor " (class " BorderColor )
388 For color displays,
389 sets the color of the window's border.
390 .TP
391 .BR borderWidth " (class " BorderWidth )
392 Sets the window's border width in pixels.
393 .TP
394 .BR cursorColor " (class " Foreground )
395 For color displays,
396 sets the color of the window's text cursor.
397 .TP
398 .BR cursorBlink " (class " CursorBlink )
399 Specifies whether to make the cursor blink.
400 The default is
401 .IR on .
402 Use
403 .I off
404 or
405 .I false
406 to turn cursor blinking off.
407 .TP
408 .BR font " (class " Font )
409 Sets the window's text font.
410 .TP
411 .BR foreground " (class " Foreground )
412 For color displays,
413 sets the window's text color.
414 .TP
415 .BR fullscreen " (class " Fullscreen )
416 The desired fullscreen size.
417 The value can be one of
418 .IR fullboth ,
419 .IR maximized ,
420 .IR fullwidth ,
421 or
422 .IR fullheight ,
423 which correspond to the command-line options `\-fs', `\-mm', `\-fw',
424 and `\-fh', respectively.
425 Note that this applies to the initial frame only.
426 .TP
427 .BR geometry " (class " Geometry )
428 Sets the geometry of the
429 .I Emacs
430 window (as described above).
431 .TP
432 .BR iconName " (class " Title )
433 Sets the icon name for the
434 .I Emacs
435 window icon.
436 .TP
437 .BR internalBorder " (class " BorderWidth )
438 Sets the window's internal border width in pixels.
439 .TP
440 .BR lineSpacing " (class " LineSpacing )
441 Additional space ("leading") between lines, in pixels.
442 .TP
443 .BR menuBar " (class " MenuBar )
444 Gives frames menu bars if
445 .IR on ;
446 don't have menu bars if
447 .IR off .
448 See the Emacs manual, sections "Lucid Resources" and "Motif
449 Resources", for how to control the appearance of the menu bar
450 if you have one.
451 .TP
452 .BR minibuffer " (class " Minibuffer )
453 If
454 .IR none ,
455 don't make a minibuffer in this frame.
456 It will use a separate minibuffer frame instead.
457 .TP
458 .BR paneFont " (class " Font )
459 Font name for menu pane titles, in non-toolkit versions of
460 .IR Emacs .
461 .TP
462 .BR pointerColor " (class " Foreground )
463 For color displays,
464 sets the color of the window's mouse cursor.
465 .TP
466 .BR privateColormap " (class " PrivateColormap )
467 If
468 .IR on ,
469 use a private color map, in the case where the "default
470 visual" of class
471 .B PseudoColor
472 and
473 .B Emacs
474 is using it.
475 .TP
476 .BR reverseVideo " (class " ReverseVideo )
477 If
478 .BR reverseVideo 's
479 value is set to
480 .IR on ,
481 the window will be displayed in reverse video.
482 .TP
483 .BR screenGamma " (class "ScreenGamma )
484 Gamma correction for colors, equivalent to the frame parameter
485 `screen\-gamma'.
486 .TP
487 .BR scrollBarWidth " (class "ScrollBarWidth )
488 The scroll bar width in pixels, equivalent to the frame parameter
489 `scroll\-bar\-width'.
490 .TP
491 .BR selectionFont " (class " SelectionFont )
492 Font name for pop-up menu items, in non-toolkit versions of
493 .IR Emacs .
494 (For toolkit versions, see the Emacs manual, sections
495 "Lucid Resources" and "Motif Resources".)
496 .TP
497 .BR selectionTimeout " (class " SelectionTimeout )
498 Number of milliseconds to wait for a selection reply.
499 A value of 0 means wait as long as necessary.
500 .TP
501 .BR synchronous " (class " Synchronous )
502 Run Emacs in synchronous mode if
503 .IR on .
504 Synchronous mode is useful for debugging X problems.
505 .TP
506 .BR title " (class " Title )
507 Sets the title of the
508 .I Emacs
509 window.
510 .TP
511 .BR toolBar " (class " ToolBar )
512 Number of lines to reserve for the tool bar.
513 .TP
514 .BR useXIM " (class " UseXIM )
515 Turns off use of X input methods (XIM) if
516 .I false
517 or
518 .IR off .
519 .TP
520 .BR verticalScrollBars " (class " ScrollBars )
521 Gives frames scroll bars if
522 .IR on ;
523 suppresses scroll bars if
524 .IR off .
525 .TP
526 .BR visualClass " (class " VisualClass )
527 Specify the "visual" that X should use.
528 This tells X how to handle colors.
529 The value should start with one of
530 .IR TrueColor ,
531 .IR PseudoColor ,
532 .IR DirectColor ,
533 .IR StaticColor ,
534 .IR GrayScale ,
535 and
536 .IR StaticGray ,
537 followed by
538 .BI \- depth\fR,\fP
539 where
540 .I depth
541 is the number of color planes.
542 .RE
543 .
544 .SH MANUALS
545 You can order printed copies of the GNU Emacs Manual from the Free
546 Software Foundation, which develops GNU software.
547 See the online store at <http://shop.fsf.org/>.
548 .br
549 Your local administrator might also have copies available.
550 As with all software and publications from FSF, everyone is permitted
551 to make and distribute copies of the Emacs manual.
552 The Texinfo source to the manual is also included in the Emacs source
553 distribution.
554 .
555 .
556 .SH FILES
557 /usr/local/share/info \(em files for the Info documentation browser.
558 The complete text of the Emacs reference manual is included in a
559 convenient tree structured form.
560 Also includes the Emacs Lisp Reference Manual, useful to anyone
561 wishing to write programs in the Emacs Lisp extension language,
562 and the Introduction to Programming in Emacs Lisp.
564 /usr/local/share/emacs/$VERSION/lisp \(em Lisp source files and
565 compiled files that define most editing commands.
566 Some are preloaded; others are autoloaded from this directory when
567 used.
569 /usr/local/libexec/emacs/$VERSION/$ARCH \(em various programs that are
570 used with GNU Emacs.
572 /usr/local/share/emacs/$VERSION/etc \(em various files of information.
574 /usr/local/share/emacs/$VERSION/etc/DOC.* \(em contains the documentation
575 strings for the Lisp primitives and preloaded Lisp functions
576 of GNU Emacs.
577 They are stored here to reduce the size of Emacs proper.
579 .
580 .
581 .SH BUGS
582 There is a mailing list, bug-gnu-emacs@gnu.org, for reporting Emacs
583 bugs and fixes.
584 But before reporting something as a bug, please try to be sure that
585 it really is a bug, not a misunderstanding or a deliberate feature.
586 We ask you to read the section ``Reporting Bugs'' in the Emacs manual
587 for hints on how and when to report bugs.
588 Also, include the version number of the Emacs you are running in
589 \fIevery\fR bug report that you send in.
590 Bugs tend actually to be fixed if they can be isolated, so it is
591 in your interest to report them in such a way that they can be
592 easily reproduced.
594 Do not expect a personal answer to a bug report.
595 The purpose of reporting bugs is to get them fixed for everyone
596 in the next release, if possible.
597 For personal assistance, consult the service directory at
598 <http://www.fsf.org/resources/service/> for a list of people who offer it.
600 Please do not send anything but bug reports to this mailing list.
601 For other Emacs lists, see <http://savannah.gnu.org/mail/?group=emacs>.
602 .
603 .
604 .SH UNRESTRICTIONS
605 .I Emacs
606 is free; anyone may redistribute copies of
607 .I Emacs
608 to anyone under the terms stated in the GNU General Public License,
609 a copy of which accompanies each copy of
610 .I Emacs
611 and which also
612 appears in the reference manual.
613 .PP
614 Copies of
615 .I Emacs
616 may sometimes be received packaged with distributions of Unix systems,
617 but it is never included in the scope of any license covering those
618 systems.
619 Such inclusion violates the terms on which distribution is permitted.
620 In fact, the primary purpose of the GNU General Public License is to
621 prohibit anyone from attaching any other restrictions to
622 redistribution of
623 .IR Emacs .
624 .PP
625 Richard Stallman encourages you to improve and extend
626 .IR Emacs ,
627 and urges that
628 you contribute your extensions to the GNU library.
629 Eventually GNU (Gnu's Not Unix) will be a complete replacement
630 for Unix.
631 Everyone will be free to use, copy, study and change the GNU system.
632 .
633 .
634 .SH SEE ALSO
635 .BR emacsclient (1),
636 .BR etags (1),
637 .BR X (7),
638 .BR xlsfonts (1),
639 .BR xterm (1),
640 .BR xrdb (1)
641 .
642 .
643 .SH AUTHORS
644 .I Emacs
645 was written by Richard Stallman and the Free Software Foundation.
646 For detailed credits and acknowledgments, see the GNU Emacs manual.
647 .
648 .
649 .
650 .SH COPYING
651 Copyright
652 .if t \(co
653 .if n (C)
654 1995, 1999-2014 Free Software Foundation, Inc.
655 .PP
656 Permission is granted to make and distribute verbatim copies of this
657 document provided the copyright notice and this permission notice are
658 preserved on all copies.
659 .PP
660 Permission is granted to copy and distribute modified versions of
661 this document under the conditions for verbatim copying, provided that
662 the entire resulting derived work is distributed under the terms of
663 a permission notice identical to this one.
664 .PP
665 Permission is granted to copy and distribute translations of this
666 document into another language, under the above conditions for
667 modified versions, except that this permission notice may be stated
668 in a translation approved by the Free Software Foundation.
669 .