Troubleshoot keyboard problems in edit mode with VI commands in Ubuntu

In Ubuntu, into the VI command of the editing mode, found that by the arrow keys can not move the cursor, will output ABCD, as well as the backspace bar can not delete the characters normally. This is because Ubuntu is preloaded with Vim-tiny, and we need to use Vim-full, the workaround is simple and requires only the following two steps:
　　
Step one, enter the following command to uninstall Vim-tiny:

sudo apt-get remove vim-common

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Step two, enter the following command to install the Vim-full:

sudo apt-get install vim

Troubleshoot keyboard problems in edit mode with VI commands in Ubuntu