title: Xterm control sequence to 'T' output to a file
body: <p>I swear there used to be a way in X to start capturing all terminal traffic to a file on your host. It may have been a HummingBird extension, but I thought it was standard. Now, I can't find the trick. Am I hallucinating (happens when you get old), or is it possible?<br><br>I'm not talking about 'tee'. I want to be able to send a xterm control-sequence to stdout, giving a file name, and have everthing shown in the window from that time onward saved to the file (until the bookend cancel is issued).</p>