Vim no end of line on last line or eof

Question

I am trying to setup vim to skip adding eol on last line or eof, i have tried this

:set binary
:set noeol
:w

which is not perfect cause binary

Answer 1

From vim documentation:

'binary' 'bin'      boolean (default off)
            local to buffer
            {not in Vi}
    This option should be set **before** editing a binary file.  You can also

You should therefore use vim -b or :e ++bin file, or reload using :e! ++bin.