There are also a lot of things you can do only in X, which are covered in
this chapter.

One note: The default xterm window has a smallish font. If you have a
small monitor or very high resolution or bad eyesight, you may want to fix
this. Follow these steps:

1. Move the mouse pointer into the center of the xterm window.
2. Hold down the Control key and the right mouse button simultaneously.
This will give you a font menu.
3. Point to the font you want and release the mouse button.

Basic X Operations

There are certain commonly used operations in X that you should
familiarize yourself with. This section describes some of the basic
operations that you may find useful.

The Mouse

The mouse in X works pretty much the same as the mouse on other systems,
except that it has three buttons. If your mouse has only two, you can
simulate the middle button by clicking both buttons simultaneously. This
is kind of tricky and annoying, so investing in a $15 three-button mouse
probably isn't a bad idea. These are available from most computer
retailers.

The buttons are numbered from left to right assuming you have a
right-handed mouse. So button one is on the left, two is in the middle,