Vim 8.1112 terminal helper

term.vim

set tk=<C-L>
tmap <c-x> <c-l>:hide<cr>
tmap <c-w><c-x> <c-l>:bd!<cr>

" Find first terminal buffer
fun! TermBufNr()
  redi => ls
  filter #\v<(zsh|bash)># ls
  redi END

  let lines = split(ls, '\n')
  if empty(lines)
    return v:null
  endif
  let bnr = str2nr(get(split(lines[0]), 0, v:null))
  if empty(bnr)
    return v:null
  else
    return bnr
  endif
endfun

fun! Term()
  let bnr = TermBufNr()
  if empty(bnr)
    term
  else
    exe "sb " . bnr
  endif
endfun

com! Term call Term()