For this assignment, write a pair of programs, in C or as shell scripts, to send and receive a message.

Your programs will:

Send and receive a message by a covert channel on a MINIX 3 system. In this case I don't understand what a covert channel is or how to implement it, and just as important Measure the data rate on an idle system.

I have no idea how to measure the data rate on the system without a third party application.