SimplePerlSockets/README at master · darkmuck/SimplePerlSockets · GitHub

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0. Open two terminal windows
1. From the first terminal, run these commands:
    $ chmod a+x server.pl;perl server.pl 1234;
2. From the second terminal, run these commands:
    $ chmod a+x client.pl;perl client.pl localhost 1234
3. From the second terminal window (client) try to type any word(s) and press enter. You should see the result transmitted to terminal window #1 (server).