guile:tldr:a52f8

The command guile --listen=${port_or_socket} is used to start the GNU Guile interpreter, which is a powerful programming language implementation.

In this command, ${port_or_socket} is a placeholder that should be replaced with either a port number or a socket file path. The --listen option tells Guile to listen for connections on the specified port or socket.

By using this command, you can remotely connect to the Guile interpreter and interact with it over a network. It enables you to execute Guile scripts, evaluate expressions, and perform various tasks programmatically.

For example, if you replace ${port_or_socket} with a port number such as 1234, the command would be guile --listen=1234. Running this command would start the Guile interpreter and make it listen for incoming connections on port 1234. Other processes or clients can then connect to that port and interact with the interpreter.

Similarly, if you replace ${port_or_socket} with a socket file path like /tmp/guile-socket, the command would be guile --listen=/tmp/guile-socket. In this case, the Guile interpreter would start listening for connections on the specified Unix domain socket file.

Overall, this command provides a means to create a networked or IPC-based interface with the Guile interpreter for remote control or integration with other programs.