Socket Unix file types

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a socket special file used inter-process communication. these allow communication between 2 processes. in addition sending data, processes can send file descriptors across unix domain socket connection using sendmsg() , recvmsg() system.


unlike named pipes, sockets duplex-capable.


a socket marked s first letter of mode string, e.g.



srwxrwxrwx /tmp/.x11-unix/x0





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