> (probably there is env var WINDOWID or some such) OK, let me make a fool of myself. Is this not $wsys?
And whether it is or isn't, what is it in cpu(1) that clears it when _I_ use it? I discovered that the recommended "window -m ..." doesn't work as $wsys is empty in my cpu session. Is it something I said? It _does_ work if I restore wsys= after the cpu response. Then I occasionally lose the plumber (or upas/fs, I'm not entirely sure), but that's another story. ++L
