I launch vim with two files. I can move from one file to the other by
:bn quite happily. But as soon as I make a change to
file1 it won't allow me to move to the other buffer unless I save the changes! I should be able to move between buffers and edit them without having to save (unless I want to close the buffer).
I get the message:
E37: No write since last change (add ! to override)
this is the version I am using (with Ubuntu 20.04):
VIM - Vi IMproved 8.1 (2018 May 18, compiled Sep 20 2021 11:42:42)