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.Note You will need the root password if you want to either halt or reboot your Red Hat Linuxsystem.4.Select Yes to finish exiting from GNOME.If you are unable to get to the Log out button (if, for example, your Pager was deleted by mistake), there aretwo other exit methods.Try one of these two ways, depending on how you started the desktop:"If you started the desktop by typing startx from your login shell, press Ctrl+Alt+F1 to return to yourlogin shell.Then type Ctrl+c to kill the desktop."If you started the desktop from a graphical login screen, first open a Terminal window (right-click thedesktop and then select New ’! Terminal).In the Terminal window, type ps x | more to see a list ofrunning processes.Look for a command name gnome-session and determine its number under thePID column.Then type kill PID, where PID is replaced by the PID number.Although these are not the most graceful ways to exit the desktop, they work.You should be able to log inagain and restart the desktop.Using the KDE Desktop EnvironmentThe KDE desktop was developed to provide an interface to Linux and other UNIX systems that couldcompete with MacOS or Microsoft Windows operating systems for ease of use.Integrated within KDE aretools for managing files, windows, multiple desktops, and applications.If you can work a mouse, you canlearn to navigate the KDE desktop.The lack of an integrated, standardized desktop environment in the past has held back Linux and other UNIXsystems from acceptance on the desktop.While individual applications could run well, you rarely coulddrag-and-drop files or other items between applications.Likewise, you couldn t open a file and expect it to launch the correct application to deal with it.KDE provides a platform for developers who want to createapplications that can easily share information and detect how to deal with different types of data.The following section describes how to get started with KDE.This includes using the KDE Setup wizard,maneuvering around the desktop, managing files, windows, virtual desktops, and adding applicationlaunchers.Starting with KDEYou can select the KDE desktop from the login screen (provided that both GNOME and KDE are installed).Choose Session ’! KDE.Then, type your login name and password, as prompted.The KDE desktop shouldappear, as shown in Figure 4-4.Figure 4-4: Manage files and applications graphically with the KDE desktop.Note If you are currently using GNOME and want to switch to KDE as your desktop environment, typeswitchdesk from your GNOME desktop.The switchdesk window that appears will let you change toKDE as the default desktop environment.If by chance the GUI is still GNOME when you log in again,try restarting X as root user by typing the following command line: init 3 ; init 5KDE desktop describedWhen you start the KDE desktop for the first time, you will probably see the Desktop Settings Wizardwindow, some icons on the desktop, and the panel (bottom).Here are some quick descriptions of what youcan expect to find on the desktop:"Desktop Settings Wizard This window appears when you first log in to KDE.It allows you toconfigure your desktop to your liking.I recommend you step through this window to configure yourdesktop initially.The window lets you:f&Choose your country and language.f& Set the system behavior to be in the style of KDE, other UNIX systems, Microsoft Windows,or Apple MacOS.Select each one to see how features would be set before choosing whichone to use.f&Turn on more or fewer special effects.More effects may look nicer, but be harmful to systemperformance.If you have a slow processor, you probably want fewer special effects.f&Choose a theme to use for your desktop.The theme effects the look of your screen, panel, andicons, as well as the location of some controls.f&Change the content that is added to the KDE panel."Desktop icons The desktop starts with several icons on it to provide quick access to selectedfeatures.By default, you will probably have icons that give you access to your Home directory,CD-ROM, and floppy disk drive.There will also be icons representing the KDE Control Panel, theRed Hat Web site, the Trash can, and Linux Documentation."Panel Provides some quick tools for launching applications and managing the desktop.You canadapt the panel to your needs by resizing it, adding tools, and changing the look and feel."K Menu button This panel button has the letter K on it.Click this button to see a menu ofapplications, utilities, and configuration tools that are available to run on your KDE desktop."Show Desktop This button toggles on and off the elements on your desktop, so you can see thefull desktop background.This makes it easier to see your menus and icons, so you can easily start anew application when your desktop is cluttered."Terminal (shell) This button resembles a computer terminal with a shell in front of it.Click thisbutton to open a Terminal window.The Terminal window provides a way for you to enter commandsat a shell prompt."KDE Control Center This button looks like a computer screen, with half of the screen covered bya remote control box.Click it to open the KDE Control Center window [ Pobierz caÅ‚ość w formacie PDF ]