ECHO characters to another terminal

[A N D R E A S]

          I need all the help i can get with a program that does the 
following :
      It echoes the characters or lines that a user is typing
in a terminal to another terminal via the mail or write command.
Let's say I run that program within csh and i type in my terminal the
command "finger", I want both the command and the output to be sent
to another terminal connected to the system, as well as appear in my 
terminal too.
I currently work on SunOS 4 on a SUN 4.
Any hint would be appreciated...

                                          Andreas


            
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