backup terminal title

[Erik Trulsson]

On Sun, Feb 07, 2010 at 09:49:54AM +0100, Dominic Fandrey wrote:
> Dominic Fandrey wrote:
> > perryh at pluto.rain.com wrote:
> >>> I wish to use  the "\033]0;%s\007" sequence in a shell-script to
> >>> set the title of a terminal. But only if I am able to undo it.
> >>>
> >>> My requirement is that this must be done without using anything
> >>> outside the base system.
> >> There is an escape sequence which will cause the terminal to echo
> >> back its current title, but it's a bit tricky to use given only
> >> base-system tools because the echo ends with, IIRC, \007 rather
> >> than \n.  It may be possible in some shells to temporarily set the
> >> line-end character to \007.  You probably also want to (somehow)
> >> cover problematic cases like terminals that don't reply to the
> >> inquiry even though TERMCAP implies that they should.
> > 
> > That actually doesn't sound tricky at all, remember that the
> > original sequence to change the title also ends with \007.
> > Where can I find this magical sequence?
> > 
> > I've been trying to read:
> > http://www.xfree86.org/current/ctlseqs.html
> > 
> > But the Syntax is really cryptic.
> 
> I finally got it:
> 
> printf "\033[22;0t"
> 	This stores the current icon and window titles on a stack.
> printf "\033[23;0t"
> 	This restores them from the stack.
> 
> It works fine with xterm, has no effect on rxvt-unicode (which I
> am using), though.
> 
> That might well be a termcap problem. I've got to look into this.

Not a termcap problem. A terminal problem rather.  This "storing title
on a stack" stuff is something very few terminals support.  Recent
xterms does, but few if any others.

Other terminals will at best have sequences for "set title" and "read
current title".  


-- 
<Insert your favourite quote here.>
Erik Trulsson
ertr1013 at student.uu.se