1. List sockets
%screen -ls
2.Kill sockets
%screen -S <ID> -X quilt
note: the ID could be get from the output of "screen -ls", e.g the output is 666.test, then the id is 666.
3. Atach socket
%screen -r <socket name>
note: the socket name could be get from the output of "screen -ls", e.g the output is 666.test, then name is 666.