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Do you have netcat (nc)? You can nc -l 4242 < file (server) on one side and nc host 4242 > file (client) on the other. You can also flip the file redirection if you need to change which is the server and which is the client. More on reddit.com

Greetings, I have used xxd along with the same parameters to pipe binary characters to a binary file. The reason you are seeing ascii characters is because all the command with those parameters displays the result in ascii and all of your characters from the binary conversion result in regular ascii characters. I found this from a quick search to confirm: https://www.scadacore.com/tools/programming-calculators/online-hex-converter/ If you try this one from terminal you will see it outputs special characters because it cannot display them from a terminal. echo 0ee221ef9e00dfa69efb3b1112bfbb2f | xxd -r -p The sample I listed is part of this script (I'm the author) and used with file encryption. Basically it converts hex to binary and appends the binary bytes to a binary file. Near the bottom of the document I list step by step example of encryption and how to use the commands. For this script xxd is critical because it's the only way to convert to and from hex from shell without installing additional tools. https://fastsitephp.com/en/documents/file-encryption-bash # Append IV to the end of the file. # Typically in secure applications and sites the IV is saved with the # encrypted data while only the key is required to be secret. echo 0ee221ef9e00dfa69efb3b1112bfbb2f | xxd -r -p >> crypto_test_10mb.enc # Now view the end of the file after adding IV tail -c 32 crypto_test_10mb.enc | hexdump -C -v More on reddit.com

Don't skip the hard parts. More on reddit.com