how to disable vim syntax colour?

• https://askubuntu.com/questions/339092/how-to-disable-vim-syntax-color
• http://catb.org/jargon/html/A/angry-fruit-salad.html

Of course I like colours – in nature, on people, wherever … – but some colour schemes on computer displays are hard too read – some are awkward or ugly.

I am glad, there is a short way to get rid off these colours in VIM.

In order to tell a shell console to operate b&w, simply switch the environment variable TERM to xterm.