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Chapter 17. Managing software

17.1. Using PackageKit
17.1.1. Installing software
17.1.2. Removing software
17.2. Using the command line interface
17.2.1. Installing software
17.2.2. Removing software
17.3. Advanced Yum
17.3.1. Installing new software with Yum
17.3.2. Updating software with Yum
17.3.3. Removing software with Yum

17.1. Using PackageKit

Fedora 13 uses a program called PackageKit to graphically assist the user with installing and removing software. Any application from the Fedora repositories, including the ones described in this user guide, can be installed with the following method.

17.1.1. Installing software

Here is how to install software using Add/Remove Software in the GNOME desktop environment.
Click System Administration Add/Remove Software. This will open the Add/Remove Software application.
In the Search Box with the magnifying glass icon, type the name of the application you wish to install. If you are unsure of the specific application you need to install, you can also type keywords in this box, just like you would for an internet search engine.
Next, click the Find button – The message Querying appears in the lower left corner breifly and then zero or more listings will appear that match your search query.
Tick the box next to the description of the application or applications you wish to install. The message Downloading repository information appears in the lower left corner. The window area below the list of packages contains additional information about the selected software.
Select any additional packages to install or remove at this time by changing tick boxes next to the package name.
Finally, click the Apply button. This starts the installation process and concurrently installs or removes any additional packages where you modified the tick box. Follow any prompts to install additional packages.
Unless an error is displayed, the application is now installed (or removed) on your computer.

17.1.2. Removing software

To remove software using PackageKit, you should follow the standard installation procedure, but untick boxes beside the programs you wish to uninstall instead of ticking boxes to install new programs.
Click System Administration Add/Remove Software. This will open the Add/Remove Software application.
In the Search Box with the magnifying glass icon, type the name of the application you wish to remove. If you are unsure of the specific application you need to remove, you can also type keywords in this box, just like you would for an internet search engine.
Next, click the Find button. The message Querying appears in the lower left corner briefly then zero or more listings will appear that match your search query.
Untick the box next to the description of the application or applications you wish to remove.

Software Installed Outside of PackageKit

If the box is already unticked, then the program is probably not already installed. If you are sure that you have selected the right application, but it still appears to not be installed, then it may have been installed using a method other than PackageKit. If, for example, the program was compiled and installed from source, then it may not register as installed in PackageKit. If this is the case, you will need to find an alternate method of removing it. If it was installed from source, you may find more information in the source distribution's Readme file.
The message Downloading repository information appears in the lower left corner. The window area below the list of packages contains additional information about the selected software.
Select any additional packages to install or remove at this time by changing tick boxes next to the package name.
Finally, click the Apply button. This starts the removal process and concurrently installs or removes any additional packages where you modified the tick box. Follow any prompts to remove additional packages, such as dependencies that only your newly uninstalled program relied upon.
Unless an error is displayed, the application is now removed from your computer.