nc:tldr:ea999
nc: Listen on a specified TCP port and print any data received.
$ nc -l ${port}
try on your machine
This command runs the nc (netcat) tool with the -l (listen) option and specifies the ${port} as the port number on which to listen for incoming network connections.
The nc tool is a utility used for reading and writing data across network connections using TCP or UDP.
The -l option tells nc to listen for incoming connections rather than initiate a connection.
${port} is a placeholder for the specific port number you want to listen on. You need to replace it with the actual port number you want to use. For example, if you want to listen on port 8080, you would replace ${port} with 8080.
Overall, this command sets up your system to start listening on a specific port using nc.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.