gistfile1.txt

     -e escape_char
             Sets the escape character for sessions with a pty (default: `~').  The escape character is only rec-
             ognized at the beginning of a line.  The escape character followed by a dot (`.') closes the connec-
             tion; followed by control-Z suspends the connection; and followed by itself sends the escape charac-
             ter once.  Setting the character to ``none'' disables any escapes and makes the session fully trans-
             parent.