Remove uninstall program icon under Ubuntu

Remove uninstall program icon under Ubuntu

Method One: Enter the command Alacarte directly in the terminal. You can add, change, hide, and display menus, but you cannot delete menus, even if you have root privileges.

method Two: note several directories and files.
Desktop files under/usr/share/applications/
/usr/share/applications/mimeinfo.cache File
Desktop files under ~/.local/share/applications
files under the ~/.local/share/applications/default.list directory
~/.local/share/applications/mimeinfo.cache File
/etc/gnome/defaults.list File
where the Default.list file is saved is the way the file opened, such as the TXT document with what program opened and so on. Nature/etc is the way the global file is opened. Local is the way personal files are opened.
A Desktop file is a menu item, which is a menu item that appears under Application, System. /usr is the global menu item, and the. Local is the individual menu item.
cache file Global file open mode and personal file open with caching
To add a menu item, just open a desktop file under/usr/share/applications/and change it.
How do you add a custom menu to the menu you want to go to? For example, add to programming, if you want to add a top level directory, that is, the first level directory under Application.

Remove uninstall program icon under Ubuntu