Start the editor by typing emacs at the command prompt and you'll see the GNU Emacs Welcome screen. Type <Ctl l> to begin editing.
Within the editor, enter the following, pressing and holding the Control Key and pressing the following letter where you see <Ctl>.
(+ 2 (* 5 3))<Ctl>x <Ctl>e
The bottom line of the window will show you the result of the evaluation. If the evaluation results in an error message, type the letter q to return to editing.
Type <Ctl>x <Ctl>c to exit Emacs.
| Windowing commands in Emacs: | |
| <Ctl>x 2 | split current window horizontally |
| <Ctl>x 3 | split current window vertically |
| <Ctl>x o | select other window |
| <Ctl>x 4 0 | delete the selected window and kill the buffer |
| <Ctl>x 1 | delete all other windows |
| <Esc>x gbd <Enter> | start the debugger in a new window |
| <Ctl>x k | kill the debugger buffer |
| Buffer Commands | |
| <Ctl>x <C>s | save the buffer |
| <Ctl>u | undo |
| Other Emacs Commands | |
| <Esc>x tetris | start the tetris game |
| Useful Functions | (pwd) | display current directory |
See http://zoo.cs.yale.edu/classes/cs210/help/emacs.html.