Synaptic (see Figure 9.2). You can install Synaptic by using Ubuntu Software;
it is not installed by default.
FIGURE 9.2 For more advanced software management in a GUI, Synaptic is
the preferred tool.
Along the left are software categories, along the top right are the package
selections for that category, and on the bottom right is the Package
Information window, which shows information about the currently selected
package. To install or remove software, click the check box to the left of its
name, and you see a menu that offers the following options:
Unmark—If you have marked the package for installation, upgrade, or
one of the other options, this option removes that mark.
Mark for Installation—Click this option to add this package to the list
that will be installed.
Mark for Re-installation—If you have some software already installed,
but for some reason it’s not working, click this option to reinstall it from
scratch. Existing configuration files are retained, so any edits you have
made are safe.
Mark for Upgrade—If the software has updates available, select this