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echo "hello" > /dev/console
or
echo "hello" > /dev/pts/X
(x = your active terminal)

google for "unix redirection" for more information, you can redirect also errors, outputs and so so on.

what you are trying to do is run the commands in red with root permissions?
when you wrote "sudo su" what happens is that the "su" command runs with root permissions and opens you a new shell. if...

you can redirect the output to the console.
if you are connected using a remote terminatl (telnet, putty etc.) you will have to redirect it to the active pty.