to send a message to another system



how to send a message to another unix terminal along with the date specified

code:
echo test `date` | wallor perhaps something similar with "write"

i need to send messages to three systems of the same network.

client server communication



you definately require to run some tcp/ip server on those system. you need not write any such server. you can use a marvolus tool named "netcat (nc)". you can create a shell script and invoke that from "inet".
other approach could be invoke such script from "r" (rsh, rexec) utilities, that may open some security threats.