Can't close a scpi(telnet) session with echo “^]” when I use it in a script

Question

The use of echo-e \"\\ 029\" does not work either. But if use strg + alt gr + ] directly in a terminal session -> it works.

Answer 1

On Linux it's actually:

CTRL + ] then ENTER

Finally type in the quit command.

^]

telnet> quit
Connection closed.
[fred@localhost ~]$