In the examples, `$' represents a typical shell prompt. It precedes lines you should type; to make this more clear, those lines are shown in this font, as opposed to lines which represent the computer's response; those lines are shown in this font, or sometimes `like this'. When we have lines which are too long to be displayed in any other way, we will show them like this:

This is an example of a line which would otherwise not fit in this space.

@FIXME{how often do we use smallexample?}

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