One time file transfer with nc command
Introduction
Transferring files between systems is a common task in the world of computing. There are several ways to transfer files, but one of the most popular and easiest methods is through the nc (netcat) command. In this blog post, we will discuss how to transfer files using nc command in Linux.
Receiver
I. First, use nc to listen on port 6543 on the receiver and redirect all received content to a file (out.file).
nc -lvp 6543 > out.file
Sender
II. On the sender, send the file to the port of the receiver machine.
nc -q 1 ip 6543 < in.file
To exit automatically, add the -q option.
-q seconds after EOF on stdin, wait the specified number of seconds
and then quit. If seconds is negative, wait forever.