If by attached you mean the above, my opinion is that you're doing things backwards. The terminal should be running a command (such as your script or tail) and showing its output (e.g. gnome-terminal -e 'tail -F /var/log/syslog'), instead of the script opening a terminal and trying to hack the output into there somehow. Don't do it that way, and do it as described in the parent above, you'll arrive at a working, more reliable solution faster.