tmux tabs with name of file open in vim

Question

I\'m new to tmux and am trying to figure out how to edit the configuration so that windows with vim open show up in the taskbar not as #:vim but as whatever the

Answer 1

And to restore automatic window title on Vim exit:

autocmd VimLeave * call system("tmux setw automatic-rename")

I would also suggest to check if we are running under tmux:

if exists('$TMUX')
    autocmd BufEnter * call system("tmux rename-window '" . expand("%:t") . "'")
    autocmd VimLeave * call system("tmux setw automatic-rename")
endif