Sockets in Your Shell

Re:Sockets in Your Shell by dx87 on Thursday December 03, 2020 @09:40AM (#25289236)

Bash isn't putting anything in /dev. It checks to see if those files exist (I've never seen them actually exist though), and if they aren't there, it just parses the string and creates a network connection as though they did exist.

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Re:Sockets in Your Shell by HelloNurse on Thursday December 03, 2020 @12:26PM (#25291560)

Bash is not even pretending such special files exist: /dev/tcp/somewhere is only an elegant syntactic shortcut for requesting a telnet-like network connected pipe in a context in which a filename is required. For the child process, it's just a file descriptor.

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Re:Sockets in Your Shell by rvense on Thursday December 03, 2020 @01:21PM (#25292435)

I don't think it's elegant at all. Magically treating special strings in this manner seems like a violation of "everything is a file".

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