Install and remove wine, virtulbox, and delete application menus in Ubuntu

Http://www.aliyun.com/zixun/aggregation/13835.html ">ubuntu Project fully complies with the principles of open source software development, and encourages people to use, improve and disseminate open-source software." That means Ubuntu is and will always be free. However, this does not just mean 0 cost, the idea of free software is that people should be free to use software in all "socially useful" ways. Free software doesn't just mean you don't have to pay for it, it also means you can use the software the way you want it: Anyone can download, modify, fix, and use the code that makes up free software in any way.

Thus, apart from the fact that free software is often provided in a free way, this freedom has a technical advantage: when developing a program, it is possible to use other people's results or build on it. This is not possible for non-free software, and people have to start from scratch when developing programs. For these reasons, free software development is quick, efficient and exciting!

1. Installation of Wine:sudo apt install wine
windows3.2 interface, loaded with great wisdom, a few securities software, is not the problem of displaying garbled, that is, operating on the code.
Under ~/.win
Delete Wine:sudo apt--purge remove wine
Delete directory: RM-RF ~/.wine
Bad use, delete it, but found that the menu is not completely removed, and will not be processed.

2. Install Virtulbox
sudo apt install VirtualBox
You have to perform the following, or no menu.
sudo apt install virtualbox-ose

3. Remove Application Menu
The right button has an "Edit menu", and the system's preferences also have a "main Menu", which is the same.
The configuration file is a ~/.conifg/menus directory of two files Applications.menu and Settings.menu
These two files also contain several files of the/etc/xdg/menus directory Applications.menu and Settings.menu, the specific relationship is not clear, "Edit menu" not good, Application.menu file size is 0, can not call, do not know the Internet to find the user rights. You can only recover after a backup or edit a new file yourself.