Charles Campbell <[email protected]> wrote:

> Hello!
>
> Recently, as in the last year or so, I've been getting unwanted escape 
> sequences; I've tracked down the issue to a simple operation:
>
> vim -u NONE -U NONE
> :q
>
> and I get left with <esc>>4;m<esc>>4;2m.  My system uses linux (Scientific 
> Linux 7.9),
> xterm-256color, and terminfo. In using infotmp xterm-256color I do not find 
> any
> escape sequences using that format. There are three that are close:
>
> is2=\E[!p\E[?3;4l\E[4l\E>
> rmkx=\E[?1l\E>
> rs2=\E[!p\E[?3;4l\E[4l\E>
>
> (ie. these are the only places in the infocmp output that show \E> anywhere).
>
> These unwanted escape sequences are normally just annoying, but they have
> bothered some scripts I've written (bothered = as in caused to fail).
>
> Regards,
> Chip Campbell

I had the same problem with at least xfce4-terminal or gnome-terminal
in Ubuntu-18.04. Adding this at the beginning of ~/.vimrc works around it:

  " Work around spurious characters in old terminals when doing :!date
  set t_TE= t_TI=

The work around is not needed anymore in Ubuntu-20.04.

Regards
Dominique

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