-Copyright (c) 1985 Free Software Foundation, Inc; See end for conditions.
+Emacs tutorial. See end for copying conditions.
-You are looking at the Emacs tutorial.
-
-Emacs commands generally involve the CONTROL key (sometimes labelled
-CTRL or CTL) or the META key (sometimes labelled EDIT). Rather than
-write out META or CONTROL each time we want you to prefix a character,
-we'll use the following abbreviations:
+Emacs commands generally involve the CONTROL key (sometimes labeled
+CTRL or CTL) or the META key (sometimes labeled EDIT or ALT). Rather than
+write that in full each time, we'll use the following abbreviations:
C-<chr> means hold the CONTROL key while typing the character <chr>
Thus, C-f would be: hold the CONTROL key and type f.
- M-<chr> means hold the META or EDIT key down while typing <chr>.
- If there is no META or EDIT key, type <ESC>, release it,
- then type the character <chr>. "<ESC>" stands for the
- key labelled "ALT" or "ESC".
+ M-<chr> means hold the META or EDIT or ALT key down while typing <chr>.
+ If there is no META, EDIT or ALT key, instead press and release the
+ ESC key and then type <chr>. We write <ESC> for the ESC key.
Important note: to end the Emacs session, type C-x C-c. (Two characters.)
The characters ">>" at the left margin indicate directions for you to
try using a command. For instance:
-<<Blank lines inserted here by startup of help-with-tutorial>>
+<<Blank lines inserted around following line by help-with-tutorial>>
+[Middle of page left blank for didactic purposes. Text continues below]
>> Now type C-v (View next screen) to move to the next screen.
- (go ahead, do it by depressing the control key and v together).
- From now on, you'll be expected to do this whenever you finish
+ (go ahead, do it by holding down the CONTROL key while typing v).
+ From now on, you should do this again whenever you finish
reading the screen.
-Note that there is an overlap when going from screen to screen; this
-provides some continuity when moving through the file.
+Note that there is an overlap of two lines when you move from screen
+to screen; this provides some continuity so you can continue reading
+the text.
-The first thing that you need to know is how to move around from
-place to place in the file. You already know how to move forward a
-screen, with C-v. To move backwards a screen, type M-v (depress the
-META key and type v, or type <ESC>v if you don't have a META or EDIT
-key).
+The first thing that you need to know is how to move around from place
+to place in the text. You already know how to move forward one screen,
+with C-v. To move backwards one screen, type M-v (hold down the META key
+and type v, or type <ESC>v if you do not have a META, EDIT, or ALT key).
->> Try typing M-v and then C-v to move back and forth a few times.
+>> Try typing M-v and then C-v, a few times.
* SUMMARY
C-v Move forward one screenful
M-v Move backward one screenful
- C-l Clear screen and redisplay everything
- putting the text near the cursor at the center.
- (That's control-L, not control-1.)
+ C-l Clear screen and redisplay all the text,
+ moving the text around the cursor
+ to the center of the screen.
+ (That's CONTROL-L, not CONTROL-1.)
+
+>> Find the cursor, and note what text is near it.
+ Then type C-l.
+ Find the cursor again and notice that the same text
+ is near the cursor now.
->> Find the cursor and remember what text is near it.
- Then type a C-l.
- Find the cursor again and see what text is near it now.
+You can also use the PageUp and PageDn keys to move by screenfuls, if
+your terminal has them, but you can edit more efficiently if you use
+C-v and M-v.
* BASIC CURSOR CONTROL
----------------------
-Getting from screenful to screenful is useful, but how do you
-reposition yourself within a given screen to a specific place?
-There are several ways you can do this. One way (not the best, but
-the most basic) is to use the commands previous, backward, forward
-and next. As you can imagine these commands (which are given to
-Emacs as C-p, C-b, C-f, and C-n respectively) move the cursor from
-where it currently is to a new place in the given direction. Here,
-in a more graphical form are the commands:
-
+Moving from screenful to screenful is useful, but how do you
+move to a specific place within the text on the screen?
+
+There are several ways you can do this. You can use the arrow keys,
+but it's more efficient to keep your hands in the standard position
+and use the commands C-p, C-b, C-f, and C-n. These characters
+are equivalent to the four arrow keys, like this:
+
Previous line, C-p
:
:
Backward, C-b .... Current cursor position .... Forward, C-f
:
:
- Next line, C-n
+ Next line, C-n
>> Move the cursor to the line in the middle of that diagram
- and type C-l to see the whole diagram centered in the screen.
+ using C-n or C-p. Then type C-l to see the whole diagram
+ centered in the screen.
-You'll probably find it easy to think of these by letter. P for
-previous, N for next, B for backward and F for forward. These are
-the basic cursor positioning commands and you'll be using them ALL
-the time so it would be of great benefit if you learn them now.
+You'll find it easy to remember these letters by words they stand for:
+P for previous, N for next, B for backward and F for forward. You
+will be using these basic cursor positioning commands all the time.
>> Do a few C-n's to bring the cursor down to this line.
>> Move into the line with C-f's and then up with C-p's.
See what C-p does when the cursor is in the middle of the line.
-Lines are separated by Newline characters. For most applications
-there should normally be a Newline character at the end of the text,
-as well, but it is up to you to make sure of this. A file can
-validly exist without a Newline at the end.
+Each line of text ends with a Newline character, which serves to
+separate it from the following line. The last line in your file ought
+to have a Newline at the end (but Emacs does not require it to have
+one).
->> Try to C-b at the beginning of a line. Do a few more C-b's.
- Then do C-f's back to the end of the line and beyond.
+>> Try to C-b at the beginning of a line. It should move to
+ the end of the previous line. This is because it moves back
+ across the Newline character.
-When you go off the top or bottom of the screen, the text beyond
-the edge is shifted onto the screen so that your instructions can
-be carried out while keeping the cursor on the screen.
+C-f can move across a Newline just like C-b.
->> Try to move the cursor off the bottom of the screen with C-n and
+>> Do a few more C-b's, so you get a feel for where the cursor is.
+ Then do C-f's to return to the end of the line.
+ Then do one more C-f to move to the following line.
+
+When you move past the top or bottom of the screen, the text beyond
+the edge shifts onto the screen. This is called "scrolling". It
+enables Emacs to move the cursor to the specified place in the text
+without moving it off the screen.
+
+>> Try to move the cursor off the bottom of the screen with C-n, and
see what happens.
If moving by characters is too slow, you can move by words. M-f
-(Meta-f) moves forward a word and M-b moves back a word.
+(META-f) moves forward a word and M-b moves back a word.
+
+>> Type a few M-f's and M-b's.
->> Type a few M-f's and M-b's. Intersperse them with C-f's and C-b's.
+When you are in the middle of a word, M-f moves to the end of the word.
+When you are in whitespace between words, M-f moves to the end of the
+following word. M-b works likewise in the opposite direction.
+
+>> Type M-f and M-b a few times, interspersed with C-f's and C-b's
+ so that you can observe the action of M-f and M-b from various
+ places inside and between words.
Notice the parallel between C-f and C-b on the one hand, and M-f and
M-b on the other hand. Very often Meta characters are used for
-operations related to English text whereas Control characters operate
-on the basic textual units that are independent of what you are
-editing (characters, lines, etc). There is a similar parallel between
-lines and sentences: C-a and C-e move to the beginning or end of a
-line, and M-a and M-e move to the beginning or end of a sentence.
+operations related to the units defined by language (words, sentences,
+paragraphs), while Control characters operate on basic units that are
+independent of what you are editing (characters, lines, etc).
+
+This parallel applies between lines and sentences: C-a and C-e move to
+the beginning or end of a line, and M-a and M-e move to the beginning
+or end of a sentence.
>> Try a couple of C-a's, and then a couple of C-e's.
Try a couple of M-a's, and then a couple of M-e's.
-See how repeated C-a's do nothing, but repeated M-a's keep moving
-farther. Do you think that this is right?
-
-Two other simple cursor motion commands are M-< (Meta Less-than),
-which moves to the beginning of the file, and M-> (Meta Greater-than),
-which moves to the end of the file. You probably don't need to try
-them, since finding this spot again will be boring. On most terminals
-the "<" is above the comma and you must use the shift key to type it.
-On these terminals you must use the shift key to type M-< also;
-without the shift key, you would be typing M-comma.
+See how repeated C-a's do nothing, but repeated M-a's keep moving one
+more sentence. Although these are not quite analogous, each one seems
+natural.
The location of the cursor in the text is also called "point". To
paraphrase, the cursor shows on the screen where point is located in
the text.
-Here is a summary of simple moving operations including the word and
-sentence moving commands:
+Here is a summary of simple cursor-moving operations, including the
+word and sentence moving commands:
C-f Move forward a character
C-b Move backward a character
M-a Move back to beginning of sentence
M-e Move forward to end of sentence
- M-< Go to beginning of file
- M-> Go to end of file
-
>> Try all of these commands now a few times for practice.
- Since the last two will take you away from this screen,
- you can come back here with M-v's and C-v's. These are
- the most often used commands.
-
-Like all other commands in Emacs, these commands can be given
-arguments which cause them to be executed repeatedly. The way you
-give a command a repeat count is by typing C-u and then the digits
-before you type the command. If you have a META or EDIT key, you can
-omit the C-u if you hold down the META or EDIT key while you type the
-digits. This is easier, but we recommend the C-u method because it
-works on any terminal.
+ These are the most often used commands.
+
+Two other important cursor motion commands are M-< (META Less-than),
+which moves to the beginning of the whole text, and M-> (META
+Greater-than), which moves to the end of the whole text.
+
+On most terminals, the "<" is above the comma, so you must use the
+shift key to type it. On these terminals you must use the shift key
+to type M-< also; without the shift key, you would be typing M-comma.
+
+>> Try M-< now, to move to the beginning of the tutorial.
+ Then use C-v repeatedly to move back here.
+
+>> Try M-> now, to move to the end of the tutorial.
+ Then use M-v repeatedly to move back here.
+
+You can also move the cursor with the arrow keys, if your terminal has
+arrow keys. We recommend learning C-b, C-f, C-n and C-p for three
+reasons. First, they work on all kinds of terminals. Second, once
+you gain practice at using Emacs, you will find that typing these Control
+characters is faster than typing the arrow keys (because you do not
+have to move your hands away from touch-typing position). Third, once
+you form the habit of using these Control character commands, you can
+easily learn to use other advanced cursor motion commands as well.
+
+Most Emacs commands accept a numeric argument; for most commands, this
+serves as a repeat-count. The way you give a command a repeat count
+is by typing C-u and then the digits before you type the command. If
+you have a META (or EDIT or ALT) key, there is another, alternative way
+to enter a numeric argument: type the digits while holding down the
+META key. We recommend learning the C-u method because it works on
+any terminal. The numeric argument is also called a "prefix argument",
+because you type the argument before the command it applies to.
For instance, C-u 8 C-f moves forward eight characters.
-
->> Try giving a suitable argument to C-n or C-p to come as close
- as you can to this line in one jump.
-The only apparent exception to this is the screen moving commands,
-C-v and M-v. When given an argument, they scroll the screen up or
-down by that many lines, rather than screenfuls. This proves to be
-much more useful.
+>> Try using C-n or C-p with a numeric argument, to move the cursor
+ to a line near this one with just one command.
+
+Most commands use the numeric argument as a repeat count, but some
+commands use it in some other way. Several commands (but none of
+those you have learned so far) use it as a flag--the presence of a
+prefix argument, regardless of its value, makes the command do
+something different.
+
+C-v and M-v are another kind of exception. When given an argument,
+they scroll the screen up or down by that many lines, rather than by a
+screenful. For example, C-u 8 C-v scrolls the screen by 8 lines.
>> Try typing C-u 8 C-v now.
-Did it scroll the screen up by 8 lines? If you would like to
-scroll it down you can give an argument to M-v.
+This should have scrolled the screen up by 8 lines. If you would like
+to scroll it down again, you can give an argument to M-v.
-If you are using X Windows, there is probably a rectangular area
-called a scroll bar at the right hand side of the Emacs window. You
-can scroll the text by clicking the mouse in the scroll bar.
+If you are using a windowed display, such as X11 or MS-Windows, there
+should be a tall rectangular area called a scroll bar at the left hand
+side of the Emacs window. You can scroll the text by clicking the
+mouse in the scroll bar.
>> Try pressing the middle button at the top of the highlighted area
-within the scroll bar, then moving the mouse while holding that button
-down.
+ within the scroll bar. This should scroll the text to a position
+ determined by how high or low you click.
->> Move the mouse to a point in the scroll bar about three lines from
-the top, and click the left button a couple of times. Then try the
-right button a couple of times.
+>> Try moving the mouse up and down, while holding the middle button
+ pressed down. You'll see that the text scrolls up and down as
+ you move the mouse.
* WHEN EMACS IS HUNG
--------------------
-If Emacs gets into an infinite (or simply very long) computation which
-you don't want to finish, you can stop it safely by typing C-g.
+If Emacs stops responding to your commands, you can stop it safely by
+typing C-g. You can use C-g to stop a command which is taking too
+long to execute.
+
You can also use C-g to discard a numeric argument or the beginning of
-a command that you don't want to finish.
+a command that you do not want to finish.
>> Type C-u 100 to make a numeric arg of 100, then type C-g.
- Now type C-f. How many characters does it move?
- If you have typed an <ESC> by mistake, you can get rid of it
- with a C-g.
+ Now type C-f. It should move just one character,
+ because you canceled the argument with C-g.
+
+If you have typed an <ESC> by mistake, you can get rid of it
+with a C-g.
+
+
+* DISABLED COMMANDS
+-------------------
+
+Some Emacs commands are "disabled" so that beginning users cannot use
+them by accident.
-If you type <ESC> <ESC>, you get a new window appearing on
-the screen, telling you that M-ESC is a "disabled command"
-and asking whether you really want to execute it. The command
-M-ESC is marked as disabled because you probably don't want to
-use it until you know more about Emacs, and we expect it would
-confuse you if it were allowed to go ahead and run. If you really
-want to try the M-ESC command, you could type a Space in answer
-to the question and M-ESC would go ahead. Normally, if you do
-not want to execute M-ESC, you would type "n" to answer the question.
+If you type one of the disabled commands, Emacs displays a message
+saying what the command was, and asking you whether you want to go
+ahead and execute the command.
->> Type <ESC> <ESC>, then type n.
+If you really want to try the command, type <SPC> (the Space bar) in
+answer to the question. Normally, if you do not want to execute the
+disabled command, answer the question with "n".
+
+>> Type C-x C-l (which is a disabled command),
+ then type n to answer the question.
* WINDOWS
---------
-Emacs can have several windows, each displaying its own text.
-At this stage it is better not to go into the techniques of
-using multiple windows. But you do need to know how to get
-rid of extra windows that may appear to display help or
-output from certain commands. It is simple:
+Emacs can have several windows, each displaying its own text. We will
+explain later on how to use multiple windows. Right now we want to
+explain how to get rid of extra windows and go back to basic
+one-window editing. It is simple:
C-x 1 One window (i.e., kill all other windows).
-That is Control-x followed by the digit 1.
-C-x 1 makes the window which the cursor is in become
-the full screen, by getting rid of any other windows.
+That is CONTROL-x followed by the digit 1. C-x 1 expands the window
+which contains the cursor, to occupy the full screen. It deletes all
+other windows.
>> Move the cursor to this line and type C-u 0 C-l.
->> Type Control-h k Control-f.
+>> Type CONTROL-h k CONTROL-f.
See how this window shrinks, while a new one appears
- to display documentation on the Control-f command.
+ to display documentation on the CONTROL-f command.
>> Type C-x 1 and see the documentation listing window disappear.
+This command is unlike the other commands you have learned in that it
+consists of two characters. It starts with the character CONTROL-x.
+There is a whole series of commands that start with CONTROL-x; many of
+them have to do with windows, files, buffers, and related things.
+These commands are two, three or four characters long.
+
* INSERTING AND DELETING
------------------------
-If you want to insert text, just type it. Characters which you can
-see, such as A, 7, *, etc. are taken by Emacs as text and inserted
+If you want to insert text, just type the text. Characters which you
+can see, such as A, 7, *, etc. are taken by Emacs as text and inserted
immediately. Type <Return> (the carriage-return key) to insert a
Newline character.
-You can delete the last character you typed by typing <Rubout>.
-<Rubout> is a key on the keyboard, which might be labelled "Delete"
-instead of "Rubout" on some terminals. More generally, <Rubout>
-deletes the character immediately before the current cursor position.
-
->> Do this now, type a few characters and then delete them
- by typing <Rubout> a few times. Don't worry about this file
- being changed; you won't affect the master tutorial. This is just
- a copy of it.
-
->> Now start typing text until you reach the right margin, and keep
- typing. When a line of text gets too big for one line on the
- screen, the line of text is "continued" onto a second screen line.
- The backslash at the right margin indicates a line which has
- been continued.
->> Use <Rubout>s to delete the text until the line fits on one screen
+You can delete the last character you typed by typing <Delback>.
+<Delback> is a key on the keyboard--the same one you normally use,
+outside Emacs, for deleting the last character you typed. It is
+normally a large key a couple of lines up from the <Return> key, and
+it is usually labeled "Delete", "Del" or "Backspace".
+
+If the large key there is labeled "Backspace", then that's the one you
+use for <Delback>. There may also be another key labeled "Delete"
+somewhere else, but that's not <Delback>.
+
+More generally, <Delback> deletes the character immediately before the
+current cursor position.
+
+>> Do this now--type a few characters, then delete them
+ by typing <Delback> a few times. Don't worry about this file
+ being changed; you will not alter the master tutorial. This is
+ your personal copy of it.
+
+When a line of text gets too big for one line on the screen, the line
+of text is "continued" onto a second screen line. A backslash ("\")
+(or, if you're using a windowed display, a little curved arrow) at the
+right margin indicates a line which has been continued.
+
+>> Insert text until you reach the right margin, and keep on inserting.
+ You'll see a continuation line appear.
+
+>> Use <Delback>s to delete the text until the line fits on one screen
line again. The continuation line goes away.
->> Move the cursor to the beginning of a line and type <Rubout>. This
- deletes the newline before the line and merges the line onto
- the previous line. The resulting line may be too long to fit, in
- which case it has a continuation line.
+You can delete a Newline character just like any other character.
+Deleting the Newline character between two lines merges them into
+one line. If the resulting combined line is too long to fit in the
+screen width, it will be displayed with a continuation line.
+
+>> Move the cursor to the beginning of a line and type <Delback>. This
+ merges that line with the previous line.
+
>> Type <Return> to reinsert the Newline you deleted.
Remember that most Emacs commands can be given a repeat count;
-this includes characters which insert themselves.
+this includes text characters. Repeating a text character inserts
+it several times.
->> Try that now -- type C-u 8 * and see what happens.
+>> Try that now -- type C-u 8 * to insert ********.
You've now learned the most basic way of typing something in
Emacs and correcting errors. You can delete by words or lines
as well. Here is a summary of the delete operations:
- <Rubout> delete the character just before the cursor
- C-d delete the next character after the cursor
+ <Delback> Delete the character just before the cursor
+ C-d Delete the next character after the cursor
- M-<Rubout> kill the word immediately before the cursor
- M-d kill the next word after the cursor
+ M-<Delback> Kill the word immediately before the cursor
+ M-d Kill the next word after the cursor
- C-k kill from the cursor position to end of line
- M-k kill to the end of the current sentence
+ C-k Kill from the cursor position to end of line
+ M-k Kill to the end of the current sentence
-Notice that <Rubout> and C-d vs M-<Rubout> and M-d extend the parallel
-started by C-f and M-f (well, <Rubout> isn't really a control
+Notice that <Delback> and C-d vs M-<Delback> and M-d extend the parallel
+started by C-f and M-f (well, <Delback> is not really a control
character, but let's not worry about that). C-k and M-k are like C-e
and M-e, sort of, in that lines are opposite sentences.
-Now suppose you kill something, and then you decide that you want to
-get it back? Well, whenever you kill something bigger than a
-character, Emacs saves it for you. To yank it back, use C-y. You
-can kill text in one place, move elsewhere, and then do C-y; this is
-a good way to move text around. Note that the difference
-between "Killing" and "Deleting" something is that "Killed" things
-can be yanked back, and "Deleted" things cannot. Generally, the
-commands that can destroy a lot of text save it, while the ones that
-attack only one character, or nothing but blank lines and spaces, do
-not save.
+You can also kill any part of the text with one uniform method. Move
+to one end of that part, and type C-@ or C-<SPC> (either one). (<SPC>
+is the Space bar.) Move to the other end of that part, and type C-w.
+That kills all the text between the two positions.
-For instance, type C-n a couple times to position the cursor
-at some line on this screen.
-
->> Do this now, move the cursor and kill that line with C-k.
+>> Move the cursor to the Y at the start of the previous paragraph.
+>> Type C-<SPC>. Emacs should display a message "Mark set"
+ at the bottom of the screen.
+>> Move the cursor to the n in "end", on the second line of the
+ paragraph.
+>> Type C-w. This will kill the text starting from the Y,
+ and ending just before the n.
+
+The difference between "killing" and "deleting" is that "killed" text
+can be reinserted, whereas "deleted" things cannot be reinserted.
+Reinsertion of killed text is called "yanking". Generally, the
+commands that can remove a lot of text kill the text (they set up so
+that you can yank the text), while the commands that remove just one
+character, or only remove blank lines and spaces, do deletion (so you
+cannot yank that text).
+
+>> Move the cursor to the beginning of a line which is not empty.
+ Then type C-k to kill the text on that line.
+>> Type C-k a second time. You'll see that it kills the Newline
+ which follows that line.
Note that a single C-k kills the contents of the line, and a second
-C-k kills the line itself, and make all the other lines move up. If
-you give C-k a repeat count, it kills that many lines AND their
-contents.
+C-k kills the line itself, and makes all the other lines move up. C-k
+treats a numeric argument specially: it kills that many lines AND
+their contents. This is not mere repetition. C-u 2 C-k kills two
+lines and their newlines; typing C-k twice would not do that.
+
+Bringing back killed text is called "yanking". (Think of it as
+yanking back, or pulling back, some text that was taken away.) You
+can yank the killed text either at the same place where it was killed,
+or at some other place in the text you are editing, or even in a
+different file. You can yank the same text several times; that makes
+multiple copies of it.
-The text that has just disappeared is saved so that you can
-retrieve it. To retrieve the last killed text and put it where
-the cursor currently is, type C-y.
+The command for yanking is C-y. It reinserts the last killed text,
+at the current cursor position.
>> Try it; type C-y to yank the text back.
-Think of C-y as if you were yanking something back that someone
-took away from you. Notice that if you do several C-k's in a row
-the text that is killed is all saved together so that one C-y will
-yank all of the lines.
+If you do several C-k's in a row, all of the killed text is saved
+together, so that one C-y will yank all of the lines at once.
>> Do this now, type C-k several times.
you kill something else? C-y would yank the more recent kill. But
the previous text is not lost. You can get back to it using the M-y
command. After you have done C-y to get the most recent kill, typing
-M-Y replaces that yanked text with the previous kill. Typing M-y
-again and again brings in earlier and earlier kills. When you
-have reached the text you are looking for, you can just go away and
-leave it there. If you M-y enough times, you come back to the
-starting point (the most recent kill).
+M-y replaces that yanked text with the previous kill. Typing M-y
+again and again brings in earlier and earlier kills. When you have
+reached the text you are looking for, you do not have to do anything to
+keep it. Just go on with your editing, leaving the yanked text where
+it is.
+
+If you M-y enough times, you come back to the starting point (the most
+recent kill).
>> Kill a line, move around, kill another line.
Then do C-y to get back the second killed line.
* UNDO
------
-Any time you make a change to the text and wish you had not done so,
-you can undo the change (return the text to its previous state)
-with the undo command, C-x u. Normally, C-x u undoes one command's
-worth of changes; if you repeat the C-x u several times in a row,
-each time undoes one more command. There are two exceptions:
-commands that made no change (just moved the cursor) do not count,
-and self-inserting characters are often lumped together in groups
-of up to 20. This is to reduce the number of C-x u's you have to type.
+If you make a change to the text, and then decide that it was a
+mistake, you can undo the change with the undo command, C-x u.
+
+Normally, C-x u undoes the changes made by one command; if you repeat
+the C-x u several times in a row, each repetition undoes one
+additional command.
+
+But there are two exceptions: commands that do not change the text do
+not count (this includes cursor motion commands and scrolling
+command), and self-inserting characters are usually handled in groups
+of up to 20. (This is to reduce the number of C-x u's you have to
+type to undo insertion of text.)
>> Kill this line with C-k, then type C-x u and it should reappear.
-C-_ is another command for undoing; it is just the same as C-x u
-but easier to type several times in a row. The problem with C-_ is
-that on some keyboards it is not obvious how to type it. That is
-why C-x u is provided as well. On some DEC terminals, you can type
-C-_ by typing / while holding down CTRL. Illogical, but what can
-you expect from DEC?
+C-_ is an alternative undo command; it works just the same as C-x u,
+but it is easier to type several times in a row. The disadvantage of
+C-_ is that on some keyboards it is not obvious how to type it. That
+is why we provide C-x u as well. On some terminals, you can type C-_
+by typing / while holding down CONTROL.
+
+A numeric argument to C-_ or C-x u acts as a repeat count.
-Giving a numeric argument to C-_ or C-x u is equivalent to repeating
-it as many times as the argument says.
+You can undo deletion of text just as you can undo killing of text.
+The distinction between killing something and deleting it affects
+whether you can yank it with C-y; it makes no difference for undo.
* FILES
In order to make the text you edit permanent, you must put it in a
file. Otherwise, it will go away when your invocation of Emacs goes
-away. You put your editing in a file by "finding" the file. What
-finding means is that you see the contents of the file in your Emacs;
-and, loosely speaking, what you are editing is the file itself.
-However, the changes still don't become permanent until you "save" the
-file. This is so you can have control to avoid leaving a half-changed
-file around when you don't want to. Even then, Emacs leaves the
-original file under a changed name in case your changes turn out
-to be a mistake.
+away. In order to put your text in a file, you must "find" the file
+before you enter the text. (This is also called "visiting" the file.)
+
+Finding a file means that you see the contents of the file within
+Emacs. In many ways, it is as if you were editing the file itself.
+However, the changes you make using Emacs do not become permanent
+until you "save" the file. This is so you can avoid leaving a
+half-changed file on the system when you do not want to. Even when
+you save, Emacs leaves the original file under a changed name in case
+you later decide that your changes were a mistake.
If you look near the bottom of the screen you will see a line that
-begins and ends with dashes, and contains the string "Emacs: TUTORIAL".
-Your copy of the Emacs tutorial is called "TUTORIAL". Whatever
-file you find, that file's name will appear in that precise
-spot.
-
-The commands for finding and saving files are unlike the other
-commands you have learned in that they consist of two characters.
-They both start with the character Control-x. There is a whole series
-of commands that start with Control-x; many of them have to do with
-files, buffers, and related things, and all of them consist of
-Control-x followed by some other character.
-
-Another thing about the command for finding a file is that you have
-to say what file name you want. We say the command "reads an argument
-from the terminal" (in this case, the argument is the name of the
-file). After you type the command
+begins and ends with dashes, and starts with "--:-- TUTORIAL" or
+something like that. This part of the screen normally shows the name
+of the file that you are visiting. Right now, you are visiting a file
+called "TUTORIAL" which is your personal scratch copy of the Emacs
+tutorial. When you find a file with Emacs, that file's name will
+appear in that precise spot.
+
+One special thing about the command for finding a file is that you
+have to say what file name you want. We say the command "reads an
+argument from the terminal" (in this case, the argument is the name of
+the file). After you type the command
C-x C-f Find a file
-Emacs asks you to type the file name. It echoes on the bottom
-line of the screen. You are using the minibuffer now! this is
-what the minibuffer is for. When you type <Return> to end the
-file name, the minibuffer is no longer needed, so it disappears.
+Emacs asks you to type the file name. The file name you type appears
+on the bottom line of the screen. The bottom line is called the
+minibuffer when it is used for this sort of input. You can use
+ordinary Emacs editing commands to edit the file name.
+
+While you are entering the file name (or any minibuffer input),
+you can cancel the command with C-g.
>> Type C-x C-f, then type C-g. This cancels the minibuffer,
and also cancels the C-x C-f command that was using the
minibuffer. So you do not find any file.
-In a little while the file contents appear on the screen. You can
-edit the contents. When you wish to make the changes permanent,
-issue the command
+When you have finished entering the file name, type <Return> to
+terminate it. Then C-x C-f command goes to work, and finds the file
+you chose. The minibuffer disappears when the C-x C-f command is
+finished.
+
+In a little while the file contents appear on the screen, and you can
+edit the contents. When you wish to make your changes permanent,
+type the command
C-x C-s Save the file
-The contents of Emacs are written into the file. The first time you
-do this, the original file is renamed to a new name so that it
-is not lost. The new name is made by appending "~" to the end
-of the original file's name.
+This copies the text within Emacs into the file. The first time you
+do this, Emacs renames the original file to a new name so that it is
+not lost. The new name is made by adding "~" to the end of the
+original file's name.
-When saving is finished, Emacs prints the name of the file written.
+When saving is finished, Emacs displays the name of the file written.
You should save fairly often, so that you will not lose very much
work if the system should crash.
>> Type C-x C-s, saving your copy of the tutorial.
- This should print "Wrote .../TUTORIAL" at the bottom of the screen.
- On VMS it will print "Wrote ...[...]TUTORIAL."
+ This should show "Wrote ...TUTORIAL" at the bottom of the screen.
+
+NOTE: On some systems, typing C-x C-s will freeze the screen and you
+will see no further output from Emacs. This indicates that an
+operating system "feature" called "flow control" is intercepting the
+C-s and not letting it get through to Emacs. To unfreeze the screen,
+type C-q. Then see the section "Spontaneous Entry to Incremental
+Search" in the Emacs manual for advice on dealing with this "feature".
-To make a new file, just find it "as if" it already existed. Then
-start typing in the text. When you ask to "save" the file, Emacs
-will really create the file with the text that you have inserted.
-From then on, you can consider yourself to be editing an already
-existing file.
+You can find an existing file, to view it or edit it. You can also
+find a file which does not already exist. This is the way to create a
+file with Emacs: find the file, which will start out empty, and then
+begin inserting the text for the file. When you ask to "save" the
+file, Emacs will really create the file with the text that you have
+inserted. From then on, you can consider yourself to be editing an
+already existing file.
* BUFFERS
inside Emacs. You can switch back to it by finding it again with
C-x C-f. This way you can get quite a number of files inside Emacs.
-The object inside Emacs which holds the text read from one file
-is called a "buffer." Finding a file makes a new buffer inside Emacs.
-To see a list of the buffers that exist in Emacs, type
+>> Create a file named "foo" by typing C-x C-f foo <Return>.
+ Then insert some text, edit it, and save "foo" by typing C-x C-s.
+ Finally, type C-x C-f TUTORIAL <Return>
+ to come back to the tutorial.
+
+Emacs stores each file's text inside an object called a "buffer".
+Finding a file makes a new buffer inside Emacs. To see a list of the
+buffers that currently exist in your Emacs job, type
C-x C-b List buffers
>> Try C-x C-b now.
-See how each buffer has a name, and it may also have a file name
-for the file whose contents it holds. Some buffers do not correspond
-to files. For example, the buffer named "*Buffer List*" does
-not have any file. It is the buffer which contains the buffer
-list that was made by C-x C-b. ANY text you see in an Emacs window
-has to be in some buffer.
+See how each buffer has a name, and it may also have a file name for
+the file whose contents it holds. ANY text you see in an Emacs window
+is always part of some buffer.
>> Type C-x 1 to get rid of the buffer list.
+When you have several buffers, only one of them is "current" at any
+time. That buffer is the one you edit. If you want to edit another
+buffer, you need to "switch" to it. If you want to switch to a buffer
+that corresponds to a file, you can do it by visiting the file again
+with C-x C-f. But there is an easier way: use the C-x b command.
+In that command, you have to type the buffer's name.
+
+>> Type C-x b foo <Return> to go back to the buffer "foo" which holds
+ the text of the file "foo". Then type C-x b TUTORIAL <Return>
+ to come back to this tutorial.
+
+Most of the time, the buffer's name is the same as the file name
+(without the file directory part). However, this is not always true.
+The buffer list you make with C-x C-b always shows you the name of
+every buffer.
+
+ANY text you see in an Emacs window is always part of some buffer.
+Some buffers do not correspond to files. For example, the buffer
+named "*Buffer List*" does not have any file. It is the buffer which
+contains the buffer list that you made with C-x C-b. The buffer named
+"*Messages*" also does not correspond to any file; it contains the
+messages that have appeared on the bottom line during your Emacs
+session.
+
+>> Type C-x b *Messages* <Return> to look at the buffer of messages.
+ Then type C-x b TUTORIAL <Return> to come back to this tutorial.
+
If you make changes to the text of one file, then find another file,
this does not save the first file. Its changes remain inside Emacs,
in that file's buffer. The creation or editing of the second file's
C-x s Save some buffers
-C-x s goes through the list of all the buffers you have
-and finds the ones that contain files you have changed.
-For each such buffer, C-x s asks you whether to save it.
+C-x s asks you about each buffer which contains changes that you have
+not saved. It asks you, for each such buffer, whether to save the
+buffer.
+
+>> Insert a line of text, then type C-x s.
+ It should ask you whether to save the buffer named TUTORIAL.
+ Answer yes to the question by typing "y".
* EXTENDING THE COMMAND SET
M-x Named command eXtend. Followed by a long name.
These are commands that are generally useful but used less than the
-commands you have already learned about. You have already seen two
-of them: the file commands C-x C-f to Find and C-x C-s to Save.
-Another example is the command to tell Emacs that you'd like to stop
-editing and get rid of Emacs. The command to do this is C-x C-c.
-(Don't worry; it offers to save each changed file before it kills the
-Emacs.)
-
-C-z is the usual way to exit Emacs, because it is always better not to
-kill the Emacs if you are going to do any more editing. On systems
-which allow it, C-z exits from Emacs to the shell but does not destroy
-the Emacs; if you use the C shell, you can resume Emacs with the `fg'
-command (or, more generally, with `%emacs', which works even if your
-most recent job was some other). On systems where suspending is not
-possible, C-z creates a subshell running under Emacs to give you the
-chance to run other programs and return to Emacs afterward, but it
-does not truly "exit" from Emacs. In this case, the shell command
-`exit' is the usual way to get back to Emacs from the subshell.
-
-You would use C-x C-c if you were about to log out. You would
-also use it to exit an Emacs invoked under mail handling programs
-and other random utilities, since they may not believe you have
-really finished using the Emacs if it continues to exist.
-
-There are many C-x commands. The ones you know are:
-
- C-x C-f Find file.
- C-x C-s Save file.
- C-x C-b List buffers.
- C-x C-c Quit Emacs.
- C-x u Undo.
+commands you have already learned about. You have already seen a few
+of them: the file commands C-x C-f to Find and C-x C-s to Save, for
+example. Another example is the command to end the Emacs
+session--this is the command C-x C-c. (Do not worry about losing
+changes you have made; C-x C-c offers to save each changed file before
+it kills the Emacs.)
+
+C-z is the command to exit Emacs *temporarily*--so that you can go
+back to the same Emacs session afterward.
+
+On systems which allow it, C-z "suspends" Emacs; that is, it returns
+to the shell but does not destroy the Emacs. In the most common
+shells, you can resume Emacs with the `fg' command or with `%emacs'.
+
+On systems which do not implement suspending, C-z creates a subshell
+running under Emacs to give you the chance to run other programs and
+return to Emacs afterward; it does not truly "exit" from Emacs. In
+this case, the shell command `exit' is the usual way to get back to
+Emacs from the subshell.
+
+The time to use C-x C-c is when you are about to log out. It's also
+the right thing to use to exit an Emacs invoked under mail handling
+programs and other miscellaneous utilities, since they may not know
+how to cope with suspension of Emacs. In ordinary circumstances,
+though, if you are not about to log out, it is better to suspend Emacs
+with C-z instead of exiting Emacs.
+
+There are many C-x commands. Here is a list of the ones you have learned:
+
+ C-x C-f Find file
+ C-x C-s Save file
+ C-x s Save some buffers
+ C-x C-b List buffers
+ C-x b Switch buffer
+ C-x C-c Quit Emacs
+ C-x 1 Delete all but one window
+ C-x u Undo
Named eXtended commands are commands which are used even less
-frequently, or commands which are used only in certain modes. These
-commands are usually called "functions". An example is the function
-replace-string, which globally replaces one string with another. When
-you type M-x, Emacs prompts you at the bottom of the screen with
-M-x and you should type the name of the function you wish to call; in
-this case, "replace-string". Just type "repl s<TAB>" and Emacs will
-complete the name. End the command name with <Return>.
-Then type the two "arguments"--the string to be replaced, and the string
-to replace it with--each one ended with a Return.
+frequently, or commands which are used only in certain modes. An
+example is the command replace-string, which globally replaces one
+string with another. When you type M-x, Emacs prompts you at the
+bottom of the screen with M-x and you should type the name of the
+command; in this case, "replace-string". Just type "repl s<TAB>" and
+Emacs will complete the name. (<TAB> is the Tab key, usually found
+above the CapsLock or Shift key near the left edge of the keyboard.)
+End the command name with <Return>.
+
+The replace-string command requires two arguments--the string to be
+replaced, and the string to replace it with. You must end each
+argument with <Return>.
>> Move the cursor to the blank line two lines below this one.
Then type M-x repl s<Return>changed<Return>altered<Return>.
Notice how this line has changed: you've replaced
- the word c-h-a-n-g-e-d with "altered" wherever it occurred
- after the cursor.
+ the word c-h-a-n-g-e-d with "altered" wherever it occurred,
+ after the initial position of the cursor.
+
+
+* AUTO SAVE
+-----------
+
+When you have made changes in a file, but you have not saved them yet,
+they could be lost if your computer crashes. To protect you from
+this, Emacs periodically writes an "auto save" file for each file that
+you are editing. The auto save file name has a # at the beginning and
+the end; for example, if your file is named "hello.c", its auto save
+file's name is "#hello.c#". When you save the file in the normal way,
+Emacs deletes its auto save file.
+
+If the computer crashes, you can recover your auto-saved editing by
+finding the file normally (the file you were editing, not the auto
+save file) and then typing M-x recover file<Return>. When it asks for
+confirmation, type yes<Return> to go ahead and recover the auto-save
+data.
+
+
+* ECHO AREA
+-----------
+
+If Emacs sees that you are typing multicharacter commands slowly, it
+shows them to you at the bottom of the screen in an area called the
+"echo area". The echo area contains the bottom line of the screen.
* MODE LINE
-----------
-If Emacs sees that you are typing commands slowly it shows them to you
-at the bottom of the screen in an area called the "echo area." The echo
-area contains the bottom line of the screen. The line immediately above
-it is called the MODE LINE. The mode line says something like
+The line immediately above the echo area is called the "mode line".
+The mode line says something like this:
---**-Emacs: TUTORIAL (Fundamental)--58%----------------------
+--:** TUTORIAL 63% L749 (Fundamental)-----------------------
-This is a very useful "information" line.
+This line gives useful information about the status of Emacs and
+the text you are editing.
You already know what the filename means--it is the file you have
-found. What the --NN%-- means is that NN percent of the file is
-above the top of the screen. If the top of the file is on the screen,
-it will say --Top-- instead of --00%--. If the bottom of the file is
-on the screen, it will say --Bot--. If you are looking at a file so
-small it all fits on the screen, it says --All--.
+found. NN% indicates your current position in the text; it means that
+NN percent of the text is above the top of the screen. If the top of
+the file is on the screen, it will say "Top" instead of " 0%". If the
+bottom of the text is on the screen, it will say "Bot". If you are
+looking at text so small that all of it fits on the screen, the mode
+line says "All".
+
+The L and digits indicate position in another way: they give the
+current line number of point.
The stars near the front mean that you have made changes to the text.
-Right after you visit or save a file, there are no stars, just dashes.
+Right after you visit or save a file, that part of the mode line shows
+no stars, just dashes.
The part of the mode line inside the parentheses is to tell you what
-modes you are in. The default mode is Fundamental which is what you
-are in now. It is an example of a "major mode". There are several
-major modes in Emacs for editing different languages and text, such as
-Lisp mode, Text mode, etc. At any time one and only one major mode is
-active, and its name can always be found in the mode line just where
-"Fundamental" is now. Each major mode makes a few commands behave
-differently. For example, there are commands for creating comments in
-a program, and since each programming language has a different idea of
-what a comment should look like, each major mode has to insert
-comments differently. Each major mode is the name of an extended
-command, which is how you get into the mode. For example,
-M-x fundamental-mode is how to get into Fundamental mode.
-
-If you are going to be editing English text, such as this file, you
+editing modes you are in. The default mode is Fundamental which is
+what you are using now. It is an example of a "major mode".
+
+Emacs has many different major modes. Some of them are meant for
+editing different languages and/or kinds of text, such as Lisp mode,
+Text mode, etc. At any time one and only one major mode is active,
+and its name can always be found in the mode line just where
+"Fundamental" is now.
+
+Each major mode makes a few commands behave differently. For example,
+there are commands for creating comments in a program, and since each
+programming language has a different idea of what a comment should
+look like, each major mode has to insert comments differently. Each
+major mode is the name of an extended command, which is how you can
+switch to that mode. For example, M-x fundamental-mode is a command to
+switch to Fundamental mode.
+
+If you are going to be editing human-language text, such as this file, you
should probably use Text Mode.
->> Type M-x text-mode<Return>.
-Don't worry, none of the commands you have learned changes Emacs in
-any great way. But you can observe that apostrophes are now part of
-words when you do M-f or M-b. Major modes are usually like that:
-commands don't change into completely unrelated things, but they work
-a little bit differently.
+>> Type M-x text mode<Return>.
-To get documentation on your current major mode, type C-h m.
+Don't worry, none of the Emacs commands you have learned changes in
+any great way. But you can observe that M-f and M-b now treat
+apostrophes as part of words. Previously, in Fundamental mode,
+M-f and M-b treated apostrophes as word-separators.
+
+Major modes usually make subtle changes like that one: most commands
+do "the same job" in each major mode, but they work a little bit
+differently.
+
+To view documentation on your current major mode, type C-h m.
>> Use C-u C-v once or more to bring this line near the top of screen.
>> Type C-h m, to see how Text mode differs from Fundamental mode.
>> Type C-x 1 to remove the documentation from the screen.
Major modes are called major because there are also minor modes.
-They are called minor because they aren't alternatives to the major
-modes, just minor modifications of them. Each minor mode can be
-turned on or off by itself, regardless of what major mode you are in,
-and regardless of the other minor modes. So you can use no minor
-modes, or one minor mode, or any combination of several minor modes.
-
-One minor mode which is very useful, especially for editing English
-text, is Auto Fill mode. When this mode is on, Emacs breaks the line
-in between words automatically whenever the line gets too long. You
-can turn this mode on by doing M-x auto-fill-mode<Return>. When the
-mode is on, you can turn it off by doing M-x auto-fill-mode<Return>.
-If the mode is off, this function turns it on, and if the mode is on,
-this function turns it off. This is called "toggling".
-
->> Type M-x auto-fill-mode<Return> now. Then insert a line of "asdf "
+Minor modes are not alternatives to the major modes, just minor
+modifications of them. Each minor mode can be turned on or off by
+itself, independent of all other minor modes, and independent of your
+major mode. So you can use no minor modes, or one minor mode, or any
+combination of several minor modes.
+
+One minor mode which is very useful, especially for editing
+human-language text, is Auto Fill mode. When this mode is on, Emacs
+breaks the line in between words automatically whenever you insert
+text and make a line that is too wide.
+
+You can turn Auto Fill mode on by doing M-x auto fill mode<Return>.
+When the mode is on, you can turn it off again by doing M-x
+auto fill mode<Return>. If the mode is off, this command turns it on,
+and if the mode is on, this command turns it off. We say that the
+command "toggles the mode".
+
+>> Type M-x auto fill mode<Return> now. Then insert a line of "asdf "
over again until you see it divide into two lines. You must put in
spaces between them because Auto Fill breaks lines only at spaces.
characters with it. Then set the margin back to 70 using
C-x f again.
-If you makes changes in the middle of a paragraph, Auto Fill mode
+If you make changes in the middle of a paragraph, Auto Fill mode
does not re-fill it for you.
-To re-fill the paragraph, type M-q (Meta-q) with the cursor inside
+To re-fill the paragraph, type M-q (META-q) with the cursor inside
that paragraph.
>> Move the cursor into the previous paragraph and type M-q.
+
* SEARCHING
-----------
Emacs can do searches for strings (these are groups of contiguous
-characters or words) either forward through the file or backward
-through it. To search for the string means that you are trying to
-locate it somewhere in the file and have Emacs show you where the
-occurrences of the string exist. This type of search is somewhat
-different from what you may be familiar with. It is a search that is
-performed as you type in the thing to search for. The command to
-initiate a search is C-s for forward search, and C-r for reverse
-search. BUT WAIT! Don't do them now. When you type C-s you'll
-notice that the string "I-search" appears as a prompt in the echo
-area. This tells you that Emacs is in what is called an incremental
-search waiting for you to type the thing that you want to search for.
-<RET> terminates a search.
+characters or words) either forward through the text or backward
+through it. Searching for a string is a cursor motion command;
+it moves the cursor to the next place where that string appears.
+
+The Emacs search command is different from the search commands
+of most editors, in that it is "incremental". This means that the
+search happens while you type in the string to search for.
+
+The command to initiate a search is C-s for forward search, and C-r
+for reverse search. BUT WAIT! Don't try them now.
+
+When you type C-s you'll notice that the string "I-search" appears as
+a prompt in the echo area. This tells you that Emacs is in what is
+called an incremental search waiting for you to type the thing that
+you want to search for. <Return> terminates a search.
>> Now type C-s to start a search. SLOWLY, one letter at a time,
type the word 'cursor', pausing after you type each
character to notice what happens to the cursor.
->> Type C-s to find the next occurrence of "cursor".
->> Now type <Rubout> four times and see how the cursor moves.
->> Type <RET> to terminate the search.
+ Now you have searched for "cursor", once.
+>> Type C-s again, to search for the next occurrence of "cursor".
+>> Now type <Delback> four times and see how the cursor moves.
+>> Type <Return> to terminate the search.
Did you see what happened? Emacs, in an incremental search, tries to
-go to the occurrence of the string that you've typed out so far. To go
-to the next occurrence of 'cursor' just type C-s again. If no such
-occurrence exists Emacs beeps and tells you that it is a failing
-search. C-g would also terminate the search.
-
-If you are in the middle of an incremental search and type <Rubout>,
+go to the occurrence of the string that you've typed out so far. To
+go to the next occurrence of 'cursor' just type C-s again. If no such
+occurrence exists, Emacs beeps and tells you the search is currently
+"failing". C-g would also terminate the search.
+
+NOTE: On some systems, typing C-s will freeze the screen and you will
+see no further output from Emacs. This indicates that an operating
+system "feature" called "flow control" is intercepting the C-s and not
+letting it get through to Emacs. To unfreeze the screen, type C-q.
+Then see the section "Spontaneous Entry to Incremental Search" in the
+Emacs manual for advice on dealing with this "feature".
+
+If you are in the middle of an incremental search and type <Delback>,
you'll notice that the last character in the search string is erased
and the search backs up to the last place of the search. For
-instance, suppose you currently have typed 'cu' and you see that your
-cursor is at the first occurrence of 'cu'. If you now type <Rubout>,
-the 'u' on the search line is erased and you'll be repositioned in the
-text to the occurrence of 'c' where the search took you before you
-typed the 'u'. This provides a useful means for backing up while you
-are searching.
+instance, suppose you have typed "c", to search for the first
+occurrence of "c". Now if you type "u", the cursor will move
+to the first occurrence of "cu". Now type <Delback>. This erases
+the "u" from the search string, and the cursor moves back to
+the first occurrence of "c".
If you are in the middle of a search and type a control or meta
character (with a few exceptions--characters that are special in
a search, such as C-s and C-r), the search is terminated.
The C-s starts a search that looks for any occurrence of the search
-string AFTER the current cursor position. But what if you want to
-search for something earlier in the text? To do this, type C-r for
-Reverse search. Everything that applies to C-s applies to C-r except
-that the direction of the search is reversed.
+string AFTER the current cursor position. If you want to search for
+something earlier in the text, type C-r instead. Everything that we
+have said about C-s also applies to C-r, except that the direction of
+the search is reversed.
* MULTIPLE WINDOWS
One of the nice features of Emacs is that you can display more than one
window on the screen at the same time.
->> Move the cursor to this line and type C-u 0 C-l.
+>> Move the cursor to this line and type C-u 0 C-l (that's CONTROL-L, not
+ CONTROL-1).
>> Now type C-x 2 which splits the screen into two windows.
Both windows display this tutorial. The cursor stays in the top window.
>> Type C-M-v to scroll the bottom window.
- (If you don't have a real Meta key, type ESC C-v.)
+ (If you do not have a real META key, type <ESC> C-v.)
>> Type C-x o ("o" for "other") to move the cursor to the bottom window.
>> Use C-v and M-v in the bottom window to scroll it.
Keep reading these directions in the top window.
>> Type C-x o again to move the cursor back to the top window.
- The cursor is still just where it was in the top window before.
+ The cursor in the top window is just where it was before.
You can keep using C-x o to switch between the windows. Each
window has its own cursor position, but only one window actually
shows the cursor. All the ordinary editing commands apply to the
-window that the cursor is in.
+window that the cursor is in. We call this the "selected window".
The command C-M-v is very useful when you are editing text in one
window and using the other window just for reference. You can keep
-the cursor always in the window where you are editing, and edit
-there as you advance through the other window.
+the cursor always in the window where you are editing, and advance
+through the other window sequentially with C-M-v.
+
+C-M-v is an example of a CONTROL-META character. If you have a real
+META key, you can type C-M-v by holding down both CONTROL and META while
+typing v. It does not matter whether CONTROL or META "comes first,"
+because both of these keys act by modifying the characters you type.
+
+If you do not have a real META key, and you use <ESC> instead, the
+order does matter: you must type <ESC> followed by CONTROL-v, because
+CONTROL-<ESC> v will not work. This is because <ESC> is a character
+in its own right, not a modifier key.
>> Type C-x 1 (in the top window) to get rid of the bottom window.
of the top one. Think of this command as "Keep just one
window--the window I am already in.")
-You don't have to display the same buffer in both windows. If
-you use C-x C-f to find a file in one window, the other window
-doesn't change. You can pick a file in each window
-independently.
+You do not have to display the same buffer in both windows. If you
+use C-x C-f to find a file in one window, the other window does not
+change. You can find a file in each window independently.
Here is another way to use two windows to display two different
things:
>> Type C-x 4 C-f followed by the name of one of your files.
- End with <RETURN>. See the specified file appear in the bottom
+ End with <Return>. See the specified file appear in the bottom
window. The cursor goes there, too.
>> Type C-x o to go back to the top window, and C-x 1 to delete
surrounding the parentheses around the major mode name. For
example, you might see [(Fundamental)] instead of (Fundamental).
-To get out of the recursive editing level, type
- M-x top-level<Return>.
+To get out of the recursive editing level, type <ESC> <ESC> <ESC>.
+That is an all-purpose "get out" command. You can also use it for
+eliminating extra windows, and getting out of the minibuffer.
->> Try that now; it should display "Back to top level"
- at the bottom of the screen.
-
-In fact, you were ALREADY at top level (not inside a recursive editing
-level) if you have obeyed instructions. M-x top-level does not care;
-it gets out of any number of recursive editing levels, perhaps zero,
-to get back to top level.
+>> Type M-x to get into a minibuffer; then type <ESC> <ESC> <ESC> to
+ get out.
-You can't use C-g to get out of a recursive editing level because C-g
-is used for discarding numeric arguments and partially typed commands
-WITHIN the recursive editing level.
+You cannot use C-g to get out of a recursive editing level. This is
+because C-g is used for canceling commands and arguments WITHIN the
+recursive editing level.
* GETTING MORE HELP
In this tutorial we have tried to supply just enough information to
get you started using Emacs. There is so much available in Emacs that
it would be impossible to explain it all here. However, you may want
-to learn more about Emacs since it has numerous desirable features
-that you don't know about yet. Emacs has a great deal of internal
-documentation. All of these commands can be accessed through
-the character Control-h, which we call "the Help character"
-because of the function it serves.
+to learn more about Emacs since it has many other useful features.
+Emacs provides commands for reading documentation about Emacs
+commands. These "help" commands all start with the character
+CONTROL-h, which is called "the Help character".
-To use the HELP features, type the C-h character, and then a
+To use the Help features, type the C-h character, and then a
character saying what kind of help you want. If you are REALLY lost,
type C-h ? and Emacs will tell you what kinds of help it can give.
-If you have typed C-h and decide you don't want any help, just
+If you have typed C-h and decide you do not want any help, just
type C-g to cancel it.
-(Some sites rebind the character C-h. They really shouldn't do this
-as a blanket measure, so complain to the operator. Meanwhile, if C-h
+(Some sites change the meaning of the character C-h. They really
+should not do this as a blanket measure for all users, so you have
+grounds to complain to the system administrator. Meanwhile, if C-h
does not display a message about help at the bottom of the screen, try
-typing M-x help RET instead.)
+typing the F1 key or M-x help <Return> instead.)
-The most basic HELP feature is C-h c. Type C-h, a c, and a
-command character or sequence, and Emacs displays a very brief
+The most basic HELP feature is C-h c. Type C-h, the character c, and
+a command character or sequence; then Emacs displays a very brief
description of the command.
->> Type C-h c Control-p.
- The message should be something like
+>> Type C-h c C-p.
+
+The message should be something like this:
C-p runs the command previous-line
-This tells you the "name of the function". That is important in
-writing Lisp code to extend Emacs; it also is enough to remind
-you of what the command does if you have seen it before but did
-not remember.
+This tells you the "name of the function". Function names are used
+mainly for customizing and extending Emacs. But since function names
+are chosen to indicate what the command does, they can serve also as
+very brief documentation--sufficient to remind you of commands you
+have already learned.
Multi-character commands such as C-x C-s and (if you have no META or
-EDIT key) <ESC>v are also allowed after C-h c.
+EDIT or ALT key) <ESC>v are also allowed after C-h c.
-To get more information on the command, use C-h k instead of C-h c.
+To get more information about a command, use C-h k instead of C-h c.
->> Type C-h k Control-p.
+>> Type C-h k C-p.
This displays the documentation of the function, as well as its
name, in an Emacs window. When you are finished reading the
output, type C-x 1 to get rid of the help text. You do not have
to do this right away. You can do some editing while referring
-to the help text and then type C-x 1.
+to the help text, and then type C-x 1.
Here are some other useful C-h options:
function.
>> Try typing C-h f previous-line<Return>.
- This prints all the information Emacs has about the
+ This displays all the information Emacs has about the
function which implements the C-p command.
+A similar command C-h v displays the documentation of variables whose
+values you can set to customize Emacs behavior. You need to type in
+the name of the variable when Emacs prompts for it.
+
C-h a Command Apropos. Type in a keyword and Emacs will list
all the commands whose names contain that keyword.
- These commands can all be invoked with Meta-x.
+ These commands can all be invoked with META-x.
For some commands, Command Apropos will also list a one
- or two character sequence which has the same effect.
+ or two character sequence which runs the same command.
>> Type C-h a file<Return>.
-This displays in another window a list of all M-x commands with
-"file" in their names. You will also see commands like C-x C-f
-and C-x C-w, listed beside the command names find-file and
-write-file.
+This displays in another window a list of all M-x commands with "file"
+in their names. You will see character-commands like C-x C-f listed
+beside the corresponding command names such as find-file.
>> Type C-M-v to scroll the help window. Do this a few times.
>> Type C-x 1 to delete the help window.
+ C-h i Read On-line Manuals (a.k.a. Info). This command puts
+ you into a special buffer called `*info*' where you
+ can read on-line manuals for the packages installed on
+ your system. Type m emacs <Return> to read the Emacs
+ manual. If you have never before used Info, type ?
+ and Emacs will take you on a guided tour of Info mode
+ facilities. Once you are through with this tutorial,
+ you should consult the Emacs Info manual as your
+ primary documentation.
+
+
+* MORE FEATURES
+---------------
+
+You can learn more about Emacs by reading its manual, either as a book
+or on-line in Info (use the Help menu or type F10 h r). Two features
+that you may like especially are completion, which saves typing, and
+dired, which simplifies file handling.
+
+Completion is a way to avoid unnecessary typing. For instance, if you
+want to switch to the *Messages* buffer, you can type C-x b *M<Tab>
+and Emacs will fill in the rest of the buffer name as far as it can
+determine from what you have already typed. Completion is described
+in Info in the Emacs manual in the node called "Completion".
+
+Dired enables you to list files in a directory (and optionally its
+subdirectories), move around that list, visit, rename, delete and
+otherwise operate on the files. Dired is described in Info in the
+Emacs manual in the node called "Dired".
+
+The manual also describes many other Emacs features.
+
* CONCLUSION
------------
Remember, to exit Emacs permanently use C-x C-c. To exit to a shell
-temporarily, so that you can come back in, use C-z.
+temporarily, so that you can come back to Emacs afterward, use C-z.
This tutorial is meant to be understandable to all new users, so if
you found something unclear, don't sit and blame yourself - complain!
-COPYING
--------
+* COPYING
+---------
This tutorial descends from a long line of Emacs tutorials
starting with the one written by Stuart Cracraft for the original Emacs.
This version of the tutorial, like GNU Emacs, is copyrighted, and
comes with permission to distribute copies on certain conditions:
-Copyright (c) 1985 Free Software Foundation
+Copyright (C) 1985, 1996, 1998, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
Permission is granted to anyone to make or distribute verbatim copies
of this document as received, in any medium, provided that the
under the above conditions, provided also that they
carry prominent notices stating who last altered them.
-The conditions for copying Emacs itself are slightly different
-but in the same spirit. Please read the file COPYING and then
-do give copies of GNU Emacs to your friends.
-Help stamp out software obstructionism ("ownership") by using,
-writing, and sharing free software!
+The conditions for copying Emacs itself are more complex, but in the
+same spirit. Please read the file COPYING and then do give copies of
+GNU Emacs to your friends. Help stamp out software obstructionism
+("ownership") by using, writing, and sharing free software!
+
+;;; arch-tag: a0f84628-777f-4238-8865-451a73167f55