how to use the Edwin

1, if there is no META or EDIT key, Alt is that key.

2, to end the session, C-x C-c.

3, C-v, to the next screen

4, C-g will quit what it was doing and allow you to enter it in again from scratch.

5, C-k kill from the current cursor position to end of line

6, whenever you kill something bigger than a character, Emacs saves it for you. to yank it back, use C-y.

7, C-x C-e to evaluate the expression.

8, you are now in the tutorial screem.
  Type: C-x b *scheme* to get into an evaluation buffer.
  Type: M(Alt)-p to access the history of *scheme*.
  Type: C-x b tutorial to go back to the tutorial screem.
 
9, undo: C-x u, it undo the last command.

10, File: C-x C-f filename  -->  enter into the "finding buffer" to find a file.
                                if the file exits, it find the file, if not
                                exits,create a file named filename.       
         C-x C-f C-g  --> cancel the "finding buffer" without doing anything.
         C-x C-s   -->  Save the file.
 
11, buffer:  C-x C-b:  if you find a new file with C-x C-f in the             
            Edwin,the first file remains in the Edwin,Type C-x C-b
            to find them (it shows a list of all the buffers now in
            the Edwin). Any text you see in the Edwin, has to be
            in some buffer.   if you have edited a file or something
            and go to another file without saving the first one, the
            changes would not save, unless you reback to the first
            file, and C-x C-s. There is a way to save all the changed
            file, that is C-x s. the command goes through the list
            of buffers, and saves every changed buffer.

12, C-x 1   remove the document from the screem.

13, C-s     find a word or string, type C-s,and then, type in the word,
            once, you would find the
            word, again, you will find the next occurrece of the
            word you have typed in. type in C-g, you will go back to the
            first place where you press "C-s".
14, C-x 1   display only one window.

15, C-h ?   tell you what kinds of help you can get.

16, C-h c + command: tell you the basic intro to the command.
                     to get more information, use C-h k + command.
                     to get info of a function, use C-h f + function