The tasks of logging out, locking your screen, shutting down, and restarting the system are usually related in the sense that they are accessed from the same or similar menus. Frequently your distribution will add a quick launch button to access these tasks. If not, you can add one yourself.
To log out, click Start and then Leave. You will see a menu like Figure 27 with options for logging out, locking the screen, and shutting down or restarting the system. Click the appropriate selection.
Figure 27. Adding a logout button with Red Hat enterprise Linux 3
You will also see icons for leave and lock at the bottom right of the OpenSUSE panel. Click the Leave icon on the right, and you will see a dialog box like Figure 28. Again, make your selection.
Figure 28. Using the OpenSUSE panel logout icon
You access Ubuntu logout and restart functions from a panel icon at the right end of the top Ubuntu panel. This icon is similar to the Leave icon on OpenSUSE. Click it to reveal a dialog similar to Figure 29 where you can make your choice.
Figure 29. Using the Ubuntu panel logout icon
Access the Fedora logout and restart functions from the System menu on the top panel as shown in Figure 30. Your choices are similar to the OpenSUSE and Ubuntu choices that you have seen above.
Figure 30. Logging out of the Fedora GNOME desktop
Fedora does not install a panel icon for logout or screen lock similar to those on OpenSUSE or Ubuntu. However, you can add your own quite easily.
Start by right-clicking a blank part of the panel. From the context menu, select Add to Panel..., and you will see a selection of items that you may add. Scroll down to the Log Out selection and click on it to add it to your panel. You can add the Lock Screen icon in the same manner.
Figure 31. Adding a logout button to the Fedora GNOME desktop
A logout icon will be added to your panel.
If an application is not in the list, and you can start it from the Applications menu or you can open the menu to the point where you would start the application, then right-click to open a context menu that includes choices to add a launcher to the panel or to your desktop.