# Guide Conventions

This guide makes use of the following fairly standard typefaces, highlighting, and language usage:

application

  The typeface above will be used whenever an application, such as Firefox or OpenOffice.org, is mentioned.

`command`

  The typeface above will be used whenever the text instructs a user to enter a command at a shell prompt in UNIX/Linux, such as `ls`.

`computeroutput`

  This is the typeface used to indicate information produced on `stdout` by the computer. This include error messages and prompts.

`filename`

  This typeface indicates that the text is the name (and possibly the path) of a specific file on the system in question. For example, `/etc/hosts` would appear in this typeface.

guibutton

  This formatting indicates a button on a Graphical User Interface (GUI). If this formatting appears, look for a button with the same text on the GUI of the &app; player; the button itself may look slightly different.

guimenu

  This typeface indicates the topmost menu item in a GUI. For example, in many applications the File menu item is a top=level menu item.

guimenuitem

  This typeface indicates a sub-menu item in a GUI. For example, in many applications the Save As menu item is a sub-menu item.

guitext

  This typeface indicates a text string on the GUI. This is generally a text string that appears on the GUI that is not a button or menuitem.

key

  This typeface indicates a specific key on the keyboard. For example, the Ctrl key appears in this typeface.

keycombination

  This formatting indicates a set of keys to be pressed at the same time. A familiar key combination is CtrlAltDelete.

<replaceable>

  Whenever a general term is included in an example as a placeholder, it will be signaled by this formatting. This formatting will usually appear inside other formatting. For example, `/home/<username>` indicates the home directory of a user, whose actual username would be substituted in for <username>.

`User input`

  This typeface indicates anything that the user must enter, whether that is at a shell prompt or in response to a GUI prompt.