What is the simplest way to do the following thing?

Run a program which will open specified port, listen for it, and display whatever it receives. Also if type something -- then send back to connected peer.

This is for debug purposes.


Server listens on port 8000:

$ nc -l 8000

Client connects to port 8000:

$ nc localhost 8000 
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  • This doesn't answer the question. The poster wanted to display what the client sends. The only way I see is to use the "-c" or "-e" option but I'm hoping there's a solution using only pipes. – Sridhar Sarnobat Aug 2 '14 at 3:23

This sounds like a job for Gnu Netcat (nc)

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