Applications

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You can start an application in KDE in several ways. If an entry for it is in the main menu, you can select that entry to start the application. Some applications also have buttons on the KDE panel you can click to start them. The panel already holds several of the commonly used programs, such as the Kate text editor and KMail. You can also use the file manager to locate a file using that application or the application program itself. Clicking its icon starts the application. Or you can open a shell window and enter the name of the application at the shell prompt and press ENTER to start an application. You can also press ALT-F2 to open a small window consisting of a box to enter a single command. You can use the UP ARROW and DOWN ARROW keys to display previous commands, and the RIGHT ARROW and LEFT ARROW keys or the BACKSPACE key to edit any of them. Press ENTER to execute a command.

Note 

You can create a desktop file on your desktop for any application already on your KDE menu by simply clicking and dragging its menu entry to the desktop. Select Copy and a desktop file for that application is created for you on your desktop, showing its icon.

Application Standard Links

You can also access applications directly from your desktop. To access an application from the desktop, either create a desktop file or a standard link file that can link to the original application program. With a desktop file, you can choose your own icon and specify a ToolTip comment. You can also use a desktop file to start a shell-based application running in its own terminal window. A standard link, on the other hand, is a simple reference to the original program file. Using a link starts the program up directly with no arguments. To create a standard link file, either select and drag the application in the main menu to the desktop, or locate the application on your file system, usually in the /bin, /usr/bin, or /usr/sbin directories, and then click and drag the application icon to your desktop. In the pop-up menu, select Link. The link has the same icon as the original application. Whenever you then double-click that icon, the application will start. You can also use this method to run a application program you have created yourself, locating it in your own directory and creating a link for it on your desktop.

Application Desktop Links

To create a new desktop file for an application, right-click anywhere on the empty desktop, select Create New from the pop-up menu, and then choose Link To Application. Enter the name for the program and a desktop file for it appears on the desktop with that name. A Properties dialog box then opens with four panels: General, Permissions, Execute, and Application. The General panel displays the name of the link. To select an icon image for the desktop file, click the icon. The Select Icon window is displayed, listing icons from which you can choose. To specify the application the desktop file runs, go to the Execute panel and either enter the application's program name in the Execute box or click Browse to select it. If this is a shell program, you can elect to run it from within a terminal window. To run a shell-based program such as Vi, click the Run In Terminal check box and specify any terminal options. Certain KDE programs can minimize to a small icon, which can be displayed in the panel while they are running. This is referred to as embedding on the panel. Enter the name of the program in the Execute box.

On the Permissions panel, be sure to set execute permissions so that the program can be run. You can set permissions for yourself, for your group, or for any user on the system. The Meta Info panel will list the type of file system used. In the Application panel, you can specify the type of documents to be associated with this application. The bottom of the panel shows two lists. The left list is for MIME types you want associated with this program, and the right list is the listing of available MIME types from which to choose. To add a MIME type, select an entry in the right list and click the left arrow button. Use the right arrow button to remove a MIME type. On the panel, you also specify the description and comment. For the description, enter the application name. This is the name used for the link, if you use the file manager to display it. The comment is the Help note that appears when you pass your mouse over the icon.

Desktop files needn't reside on the desktop. You can place them in any directory and access them through the file manager. You can later make changes to a desktop file by right-clicking its icon and selecting Properties from the pop-up menu. This again displays the dialog box for this file. You can change its icon and even the application it runs.

Tip 

You can have KDE automatically display selected directories or start certain applications whenever it starts up. To do so, place links for these windows and applications in the AutoStart directory located in your .kde directory.

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