If unset loops terminal responses back to the terminal as if echoed by the application.
🛈 xterm loops back data send to the application at a low level so this applies to keyboard input and replies generated by the terminal. It does not apply to clipboard pasted data and mouse actions. 🛈 control characters are handled as if transmitted by the application.
🛈 Processes keyboard input also as terminal input, but without special handling for control characters. 🛈 Paste operation are not included in this. Neither are replies from the terminal to the application.