a question about evim

[Michael ODonnell]

I don't know evim but vim has help built in.

Start help (the screen will be split) by saying:

   :help

...and then search for the "options" explanations
by saying:

  /options

...which gets you to the options "tag", which you
trigger by saying:

   Ctrl-]

...which takes you to the particular Help file that
contains (among other things) descriptions of the
backup behavior.   Then say:

   /backup

...and you'll be in the right neighborhood.