Suse linux enterprise desktop administration
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SUSE Linux Enterprise Desktop Administration. Chapter 2 Use the Linux Desktop. Objectives. Objective 1—Overview of the Linux Desktop Objective 2—Use the GNOME Desktop Environment Objective 3—Access the Command-Line Interface from the Desktop. Objective 1—Overview of the Linux Desktop.

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SUSE Linux Enterprise Desktop Administration

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Suse linux enterprise desktop administration

SUSE Linux Enterprise Desktop Administration

Chapter 2

Use the Linux Desktop


Objectives

Objectives

  • Objective 1—Overview of the Linux Desktop

  • Objective 2—Use the GNOME Desktop Environment

  • Objective 3—Access the Command-Line Interface from the Desktop

SUSE Linux Enterprise Desktop Administration


Objective 1 overview of the linux desktop

Objective 1—Overview of the Linux Desktop

  • X Window System (called X or X11)

    • The base of any graphical user interface on Linux

    • Allows you to control the input and output of several applications in different windows of a graphical interface

  • X uses a client/server architecture

    • X server

      • Controls the graphical screen

    • Client application

      • Uses the services of the X server to receive keyboard and mouse actions

SUSE Linux Enterprise Desktop Administration


Objective 1 overview of the linux desktop continued

Objective 1—Overview of the Linux Desktop (continued)

  • Window managers are specialized client applications

    • Provide control elements

    • Manage virtual desktops

    • Provide functionality of window frames

  • X Window System is not linked to any specific window manager

  • Desktop environments go far beyond the look and feel window managers provide

    • For desktops and manipulating windows

SUSE Linux Enterprise Desktop Administration


Objective 1 overview of the linux desktop continued1

Objective 1—Overview of the Linux Desktop (continued)

Figure 2-1 X System client/server architecture

SUSE Linux Enterprise Desktop Administration


Objective 2 use the gnome desktop environment

Objective 2—Use the GNOME Desktop Environment

  • GNOME is a comfortable desktop environment

  • To use the GNOME desktop environment, you need to know how to:

    • Log In

    • Log Out and Shut Down

    • Identify GNOME Desktop Components

    • Manage Icons in GNOME

    • Use the GNOME File Manager (Nautilus)

SUSE Linux Enterprise Desktop Administration


Log in

Log In

  • When working with a multiuser-capable operating system

    • You must first identify yourself to the operating system using:

      • A login string or username

      • A password

SUSE Linux Enterprise Desktop Administration


Log in continued

Log In (continued)

Figure 2-2 SLED 10 login screen

SUSE Linux Enterprise Desktop Administration


Log in continued1

Log In (continued)

Figure 2-3 GNOME desktop environment

SUSE Linux Enterprise Desktop Administration


Log out and shut down

Log Out and Shut Down

  • Open the Computer menu (also called main menu)

    • Select the Logout entry

    • See Figures 2-4 and 2-5

  • Back at the login screen, four options appear in the lower-left corner:

    • Language

    • Session

    • Reboot

    • Shut Down

SUSE Linux Enterprise Desktop Administration


Log out and shut down continued

Log Out and Shut Down (continued)

Figure 2-4 SLED 10 Computer menu

SUSE Linux Enterprise Desktop Administration


Log out and shut down continued1

Log Out and Shut Down (continued)

Figure 2-5Log out confirmation dialog

SUSE Linux Enterprise Desktop Administration


Log out and shut down continued2

Log Out and Shut Down (continued)

  • Shut down the computer directly from the GNOME desktop by selecting Shutdown

    • On the right side of the Computer menu

    • See Figures 2-4 and 2-6

SUSE Linux Enterprise Desktop Administration


Log out and shut down continued3

Log Out and Shut Down (continued)

Figure 2-6 Shutdown confirmation dialog

SUSE Linux Enterprise Desktop Administration


Exercise 2 1 log in to and log out of the gnome desktop

Exercise 2-1: Log In to and Log Out of the GNOME Desktop

  • In this exercise, log in to the GNOME desktop as user geeko (password novell); then, log out again

  • Perform these tasks from the GUI login screen (where you were left after installing SUSE Linux Enterprise Desktop 10)

SUSE Linux Enterprise Desktop Administration


Identify gnome desktop components

Identify GNOME Desktop Components

Main menu

Tomboy Notes

Additional icons

Figure 2-7 GNOME desktop bottom panel

SUSE Linux Enterprise Desktop Administration


Identify gnome desktop components continued

Identify GNOME Desktop Components (continued)

  • Additional icons include:

    • Network Manager Icon

    • Monitor

    • Globe

    • Battery

    • Speaker

    • Calendar

    • Clock

    • Board

  • Most programs are started from the main menu

SUSE Linux Enterprise Desktop Administration


Identify gnome desktop components continued1

Identify GNOME Desktop Components (continued)

Figure 2-8 GNOME main menu

SUSE Linux Enterprise Desktop Administration


Manage icons in gnome

Manage Icons in GNOME

  • Desktop

    • Create an icon for an application

      • Select the item in your application menu, drag it to a free space on your desktop, and release the mouse button

    • Create a new icon

      • Right-click a free space on your desktop

      • Options

        • Create Folder

        • Create Launcher

        • Create Document

SUSE Linux Enterprise Desktop Administration


Manage icons in gnome continued

Manage Icons in GNOME (continued)

Figure 2-11 Create a new folder

Figure 2-10 Create a new desktop icon

SUSE Linux Enterprise Desktop Administration


Manage icons in gnome continued1

Manage Icons in GNOME (continued)

Figure 2-13 Create a new document

Figure 2-12 Create a new launcher icon

SUSE Linux Enterprise Desktop Administration


Manage icons in gnome continued2

Manage Icons in GNOME (continued)

  • Panel

    • You can add new programs to the bottom panel by right-clicking a free area of the panel

      • Then select Add to Panel

    • See Figure 2-14

    • Remove a program from the control panel by right-clicking its icon in the bottom panel

      • Then select Remove From Panel

    • Move icons in the panel by holding down the right mouse button

      • Selecting Move from the Context menu

SUSE Linux Enterprise Desktop Administration


Manage icons in gnome continued3

Manage Icons in GNOME (continued)

Figure 2-14 Add new programs to the bottom panel

SUSE Linux Enterprise Desktop Administration


Manage icons in gnome continued4

Manage Icons in GNOME (continued)

  • Main Menu

    • You can add icons to the list of favorite applications by doing the following:

      • Open the main menu in the panel

      • Select More Applications

      • Using the right mouse button, select an application item in the right frame

      • Select Add to Favorites from the pop-up menu

SUSE Linux Enterprise Desktop Administration


Exercise 2 2 work with icons in gnome

Exercise 2-2: Work with Icons in GNOME

  • In this exercise, add a new launcher labeled xeyes (for the program /usr/X11R6/bin/xeyes) to your desktop

    • The icon for the new launcher should be gnomeeog.png

  • Then, add the applet Geyes to your bottom panel and remove it again

SUSE Linux Enterprise Desktop Administration


Use the gnome file manager nautilus

Use the GNOME File Manager (Nautilus)

  • You can start Nautilus by selecting the username’s Home icon on the desktop

    • Or by selecting Nautilus from the main menu

  • Normally Nautilus shows the content of the user’s home directory after starting

  • You can see your current position in the location bar below the toolbar

  • All higher directories are shown as buttons

SUSE Linux Enterprise Desktop Administration


Use the gnome file manager nautilus continued

Use the GNOME File Manager (Nautilus) (continued)

Figure 2-15Nautilus

SUSE Linux Enterprise Desktop Administration


Exercise 2 3 use the gnome file manager nautilus

Exercise 2-3: Use the GNOME File Manager (Nautilus)

  • In this exercise, you explore your GNOME desktop

SUSE Linux Enterprise Desktop Administration


Objective 3 access the command line interface from the desktop

Objective 3—Access the Command-Line Interface from the Desktop

  • Virtual terminals

    • Allow you to work in Linux as if you have several classic serial terminals available at the same time

  • You can have up to six virtual terminals (F1-F6) running on your computer

    • By pressing Ctrl+Alt+Fx, you can switch between individual terminals

    • By pressing Ctrl+Alt+F7, you can switch back to your graphical user interface

  • When you switch to a virtual terminal, a login prompt appears

SUSE Linux Enterprise Desktop Administration


Objective 3 access the command line interface from the desktop continued

Objective 3—Access the Command-Line Interface from the Desktop (continued)

  • You can start a terminal emulation from your GNOME desktop by selecting GNOME Terminal

    • Or X Terminal from the main menu

  • The terminal opens inside a window

    • Includes menus that you can use to modify the display of the terminal

  • You can also start a GNOME Terminal by right-clicking on the desktop background

    • Select Open Terminal

SUSE Linux Enterprise Desktop Administration


Objective 3 access the command line interface from the desktop continued1

Objective 3—Access the Command-Line Interface from the Desktop (continued)

Figure 2-18 GNOME Terminal window

SUSE Linux Enterprise Desktop Administration


Exercise 2 4 access the command line interface

Exercise 2-4: Access the Command-Line Interface

  • In this exercise, log in as user geeko at the first virtual terminal

  • Then, switch to the second virtual terminal and verify that a login prompt is shown there

  • Before switching back to the graphical user interface, log out from the first virtual terminal

SUSE Linux Enterprise Desktop Administration


Summary

Summary

  • You can interact with a Linux system using a graphical or command-line interface

  • The Linux graphical interface is provided by the X Window System

  • The X server used by SUSE Linux is X.org, and it communicates with client applications using the TCP/IP protocol

  • The default client application used by the X Window System in SUSE Linux is the Metacity window manager

SUSE Linux Enterprise Desktop Administration


Summary continued

Summary (continued)

  • A desktop environment such as KDE or GNOME can be used in addition to a window manager to standardize the X Window System

  • The Computer menu on the panel at the bottom of the GNOME desktop can be used to start applications, search for files, configure system settings, and shut down or hibernate the system

  • You can obtain a command-line interface in SUSE Linux by interacting with one of six virtual terminals

  • Switch from a command-line interface to a GUI interface using the Ctrl+Alt+F7 key combination

SUSE Linux Enterprise Desktop Administration


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