Fun with Emacs
You probably heard that emacs can do lots of things. This page shows some.

Emacs Tetris

Alt+x tetris
to start it. Use arrow keys to move the blocks.
Alt+x kill-buffer
to close it.
Split Windows

calendar
, Unicode,
shell
,
hexl-mode
, html-mode
,
dired
,
calculator
.
You can split your window into two or more panes, vertically or horizontally.
- Alt+x
split-window-below
- split top/bottom.
- Alt+x
split-window-right
- split side-by-side.
- Alt+x
delete-other-windows
- unsplit.
- Alt+x
other-window
- move cursor to another pane. (or click mouse)
[see Emacs: Split Windows]
View Calendar
To run calendar in emacs, Alt+x calendar
.

To close the calendar pane, type q.
Calculator
To run a calculator in emacs, Alt+x calc
.

To quit calculator, type q.
To compute “1+2”, type 1 Enter 2 +. Or, you can type the expression directly by starting with a sinle quote, like this: ' 1 + 2 Enter.
Directory Navigation and Managing Files

To start, Alt+x dired
, then, type a dir path.
To exit, press q.
For a full tutorial, see:
Emacs: File Manager, dired.
Pretty Colors
Alt+x list-colors-display

Command Line Interface (aka Shell)
Alt+x shell
to start a shell interface.
[see Emacs: Run Shell in Emacs]

LISP in Emacs
Sometime you hear that emacs has the artificial intelligence language LISP built-in. That's right. Here's how you can run a short example.

In emacs, open a file, any file.
In the file, type (+ 1 2)
, then, select the whole text, then Alt+x eval-region
.
You will see the result “3”.
CONGRADULATIONS, you've just evaluated a lisp program!
See: Emacs Lisp Basics.