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.It isselected from the Applications pop-up menu located on the Front Panel, shown earlier inFigure 21-6.When initially opened, the window displays the top-level directory of the ApplicationManager.User interaction with the Application Manager is similar to the use of the FileManager, except that the Application Manager contains executable modules.The userlaunches the Application Manager from an icon on the Front Panel, opening the windowshown in Figure 21-9. 24 2496 Ch21 8/30/00 1:26 PM Page 551THE APPLICATION MANAGER 551Figure 21-9The Application Managerwindow.Programs and icons can be installed in the Application Manager by the system administratorand can be pushed out to other workstations as part of the installation process.By default,the Application Manager comes preconfigured to include several utilities and programs (seeFigure 21-9).Each of these utilities is located in a directory, which with its contents iscalled an application group.Application groups provided with the default desktop aredescribed in Table 21-6.Table 21-6 Application GroupsGroup DescriptionDesktop_Apps Desktop applications such as File Manager, Style Manager, and Calculator.Desktop_Tools Desktop administration and operating system tools such as User Registration,Reload Application, vi text editor, and Check Spelling.Information Icons representing frequently used help topics.System_Admin Tools used by system administrators.Desktop Controls Tools to set your CDE environment, such as mouse behavior, desktop fonts,screen saver, and window behavior.OpenWindows Contains several OpenWindows-style actions, such as the mail tool andFile Manager.The top-level directory for the Application Manager is the directory /var/dt/appconfig/appmanager/login-hostname-display, created dynamically each time the user logs in.Forexample, if user bcalkins logs in from display sparc1:0, the following Application Managerdirectory is created:/var/dt/appconfig/appmanager/bcalkins-sparc1:0The Application Manager is built by gathering application groups from directories locatedalong the application search path.The default path consists of the locations listed in Table 21-7. 24 2496 Ch21 8/30/00 1:26 PM Page 552552 CHAPTER 21 ADMINISTRATION AND CONFIGURATION OF THE CDETable 21-7 Default Application Search Path LocationsScope LocationBuilt-in /usr/dt/appconfig/appmanager/System-wide /etc/dt/appconfig/appmanager/Personal $HOME/.dt/appmanagerTo create the top-level directory of the Application Manager, links are created at login timefrom the application group directories to the Application Manager directory, which is/var/dt/appconfig/appmanager/.The gathering operation is doneby the desktop utility dtappgather, which is automatically run by Login Manager after theuser has successfully logged in.For example, the desktop provides the built-in application group /usr/dt/appconfig/appmanager//Desktop_Tools.At login time, a symbolic link is created to /var/dt/appconfig/appmanager//Desktop_Tools.Applications can be added to the Application Manager by copying icons from other applica-tion groups to the personal application group.To create a personal application group, followthese steps:1.From your home folder, change to the.dt/appmanager subfolder.2.Create a new folder.The folder name will become the name of the new applicationgroup.3.Double-click Reload Applications in the Desktop_Apps application group.4.Your new application group becomes registered at the top level of ApplicationManager.A personal application group is an application group that users can alter because they havewrite permission to it.For example, users can copy (by pressing the Ctrl key and dragging)the Calculator icon from the Desktop_Tools application group to a new personal applicationgroup.Another method is to create an action for an application and then place an application(action) icon in the personal application group.The dtksh ShellAvailable in CDE is the Desktop KornShell (dtksh), which gives kshell scripting the abilityto easily access most of the existing Xt and MOTIF functions.The Desktop KornShell isbased on ksh-93, which provides a powerful set of tools and commands for the shell pro-grammer and supports the standard set of kshell programming commands.dtksh is used bydevelopers and programmers to create MOTIF applications for the CDE environment. 24 2496 Ch21 8/30/00 1:26 PM Page 553SUMMARY 553SummaryThis question always arises: Should users be allowed to customize the CDE environmentthemselves? Most large institutions frown on letting users customize their own environments.Usually, the system administrator provides a default setup that is applied to all users.Thisdefault setup promotes consistency and prevents the  self-inflicted problems that can occurwhen users incorrectly modify system files.The answer also depends on how much painyou re willing to endure for the good of your user community [ Pobierz całość w formacie PDF ]

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