I just installed the application Computer Janitor.
The icon is now accessible in the Unity Launcher.
Personally I think that the Unity toolbar is great for "normal" applications, but for system applications I prefer that they are not so easily accessible and the best place is then in the "System Settings" window.
So I can remove this icon from the Unity Launcher, but how can I add it to the "System Settings" window?
Add the starter to "System Settings":
Press Alt+F2 and run
gksu gedit /usr/share/applications/computer-janitor-gtk.desktop
, enter your root password when asked.Add
X-GNOME-Settings-Panel;X-GNOME-SystemSettings;
to the line "Categories=System;Settings;PackageManager;GTK;".Add the new line
X-GNOME-Settings-Panel=computer-janitor-gtk
to the end of the file, save and close.Remove the icon from the Launcher via rightclick →
Remove from Launcher
.And you get:
Launchers of applications are stored in ~/.local/share/applications or in /usr/share/applications/ (which to edit you have to open with
gksu nautilus
- but don't mess up your system!). Note: When an application becames updated, often the .desktop file becames updated, too (in /usr/..., not in ~/.local/...)More info about Launchers you find in the Community Help Wiki.