[Linux Shell] vim editor quit without content leave on the screen

When you run vim in Xshell to edit some files, the content leaves on the screen after you exit the editor.

Two ways to solve this problem:

1. set the environment variable: TERM

export TERM = xterm

in .bashrc for bash

or 

setenv TERM = xterm 

in .cshrc for csh

After setting, source the file to take effect.

2. add one line to set the term type in .vimrc

set term = xterm