SeedLink query interface module slinktool [OPTION]... [host][:][port] Address ([host][:][port]) is a required argument. It specifies the address of the SeedLink server in host:port format. Either the host, port or both can be omitted. If host is omitted then localhost is assumed, i.e. ':18000' implies 'localhost:18000'. If the port is omitted, then 18000 is assumed, i.e. 'localhost' implies 'localhost:18000'. If only ':' is specified, 'localhost:18000' is assumed.