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emacs-quickie.txt
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CHALLENGE: EMACS IN 2 PAGES
SOME NECESSARY NOTATION.
Any ordinary character goes into the buffer (no insert command needed).
In commands, use carriage return, shown as <cr>, after a string unless the
chart shows $, meaning to use ESCAPE. ESCAPE is called Altmode in EMACS.
C- A control character. C-F means "control F". C-_ means "control
underscore" (use C-? on a VT100 to get C-_)
M- A two-character command sequence where the first character is
Altmode. M-F means "ESCAPE then F"
M-X string A command designated "by hand". M-X Revert File means:
Altmode then "x" then type "revert file" then <cr>
point EMACS term for cursor position in current buffer
GETTING OUT.
C-X C-S Write the current buffer into a new version of the current file
name
C-X C-W Write the current buffer into a file with a different name
C-X C-C Finish by exiting to the exec
C-Z Push to a lower exec fork (the same one each time)
BUFFER OPERATIONS.
C-X C-F Get a file into a buffer for editing
C-X B Select a different buffer (prompts; default is the last one)
C-X C-B Display the list of available buffers
C-X K Kill a buffer (prompts for which one; default is current one)
M-< Move to the top of the current buffer
M-> Move to the end of the current buffer
HELP AND HELPER FUNCTIONS.
C-G Abort anything at any time (it beeps, sometimes you need 2)
F1 A string Show every command containing string (try F1 A Paragr)
F1 C x What does this key do? (try F1 C C-K as an example)
F1 D string Describe a command (try F1 D Query Rep)
C-Y Yank back the last thing killed (kill and delete are different)
M-n Provide a numeric argument of n for the command that follows
C-Q Inserts a control character in the buffer (e.g. C-Q C-L)
C-X D Directory editing subsystem (use ? to see its documentation)
CHARACTER OPERATIONS.
C-B Move left (Back)
C-F Move right (Forward)
C-P Move up (Previous)
C-N Move down (Next)
BACKSPACE Delete left
C-D Delete right
C-T Transpose previous 2 characters (ht -> th)
WORD OPERATIONS.
M-B Move left (Back)
M-F Move right (Forward)
M-BACKSPACE Kill left (C-Y yanks it back at point)
M-D Kill right (C-Y yanks it back at point)
M-T Transpose 2 words around point (if only -> only if)
M-C Capitalize word
2
M-U Uppercase word
LINE OPERATIONS.
C-A Move to the beginning
C-E Move to the end
C-O Open up a line for typing
C-X C-O Close up any blank lines around point
M-0 C-K Kill from beginning to point (C-Y yanks it back at point)
C-K Kill from point to end (C-Y yanks it back at point)
SENTENCE OPERATIONS.
M-A Move to the beginning
M-E Move to the end
C-X BACKSPACE Kill from beginning to point (C-Y yanks it back at point)
M-K Kill from point to end (C-Y yanks it back at point)
PARAGRAPH OPERATIONS.
M-[ Move to beginning
M-] Move to end
M-Q Fill the current paragraph
M-n C-X F Set the fill column to n (e.g. M-60 C-X F)
SCREEN OPERATIONS.
C-V Show next screen
M-V Show previous screen
C-L Redisplay screen
M-0 C-L Move the line where point is to line 0 (top) of the screen
PAGE OPERATIONS.
C-X [ Move to beginning (last ^L)
C-X ] Move to end (next ^L)
SEARCH AND REPLACE.
(note: EMACS has other search commands, all of which I prefer to
incremental search, but we are just describing defaults here)
C-S "Incremental" search searches while you enter string (C-S str$)
C-R "Incremental" backward search (C-R str$)
M-X Replace String Replace one string with another (M-X Repl$one
string$another)
M-X Query Replace Replace one string with another, wants SPACE meaning
"do it" or RUBOUT to skip (M-X Qu$one string$another)
REGION OPERATIONS. Region is area of buffer between point and mark (or
mark and point). Some commands set the mark, so check it before using.
C-@ Set the mark (for use with REGION commands)
C-X C-X Interchange point and mark (i.e. go to the other end of the
current region)
C-W Kill region (C-Y yanks it back at point)
WINDOW OPERATIONS.
C-X 2 Split the screen in two windows (same buffer shown in each)
C-X 1 Resume single window (using buffer from top window)
C-X O Move cursor to other window (all the usual commands apply)
M-C-V Display the next screen in the other window