>From my point of view in the section REDIRECTION of the man manual there is something technically incorrect:
/dev/tcp/host/port If host is a valid hostname or Internet address, and port is an integer port number or service name, bash attempts to open a TCP connection to the corresponding socket /dev/udp/host/port If host is a valid hostname or Internet address, and port is an integer port number or service name, bash attempts to open a UDP connection to the corresponding socket. The sentence I disagree with is: "bash attempts to open a UDP connection" The term 'UDP connection' is incorrect since in UDP there aren't any connections The definition of UDP (man udp) is: This is an implementation of the User Datagram Protocol described in RFC 768. It implements a *connectionless*, unreliable datagram packet service. Packets may be reordered or duplicated before they arrive. "Conectionless" is the key. If we search the term "connection" in RFC768 any results will appear. Thus, "UDP connection" seems wrong to me, at least in this context. Moreover, "attempts to open" seems incorrect to me, because bash does not attemp to open anything. Maybe bash "tries to send" or "attempts to send" a UDP datagram, but does not try to open anything, nor a connection. To me, it looks like someone has done copy-paste from the block of TCP (block that is correct, because TCP is connection-oriented) and just changed TCP word for UDP. However, UDP is not the same as TCP and one of the differences is that UDP *does not establish any type of connections*. So, I propose to change the sentence: "bash attemps to open a UDP connection to the corresponding socket" to: "bash attemps to send a UDP datagram to the corresponding socket" It's seems to me reasonably accurate Please, feel free to make any suggestions, variations or whatever. Thanks. Jan Carreras Note: I sent this mail to chet.ra...@case.edu twelve days ago and I don't have a response yet. I guess that the next logic step is sending the mail to bug-bash@gnu.org. If I'm wrong please point me to the right place. Thanks.
