A simple TCP example (http://docs.julialang.org/en/release-0.2/manual/networking-and-streams/)

gistfile1.jl

julia> @async begin
         server = listen(2000)
         while true
           sock = accept(server)
           println("Hello World\n")
         end
       end
Task (queued) @0x00007fe0d62ae100

julia> connect(2000)
TcpSocket(open, 0 bytes waiting)

julia> Hello World