Introduction to the Guide iiitop level of a menu on a GUI screen or windowA word in this style indicates that the word is the top level of a pulldown menu. If youclick on the word on the GUI screen, the rest of the menu should appear. For example:Under File on a GNOME terminal, the New Tab option allows you to open multipleshell prompts in the same window.Instructions to type in a sequence of commands from a GUI menu look like the fol-lowing example:Go to Applications (the main menu on the panel) => Programming => Emacs TextEditor to start the Emacs text editor.button on a GUI screen or windowThis style indicates that the text can be found on a clickable button on a GUI screen.For example:Click on the Back button to return to the webpage you last viewed.computer outputText in this style indicates text displayed to a shell prompt such as error messages andresponses to commands. For example:The ls command displays the contents of a directory. For example:Desktop about.html logs paulwesterberg.pngMail backupfiles mail reportsThe output returned in response to the command (in this case, the contents of thedirectory) is shown in this style.promptA prompt, which is a computer’s way of signifying that it is ready for you to inputsomething, is shown in this style. Examples:$#[stephen@maturin stephen]$leopard login:user inputText that the user types, either on the command line or into a text box on a GUI screen,is displayed in this style. In the following example, text is displayed in this style:To boot your system into the text based installation program, you must type in thetext command at the boot: prompt.