sendFiles

rednet.open("top")

term.clear()
term.setCursorPos(1,1)

write("Write computer id (if not, write -1): ")
id = tonumber(read())

write("Write path to file: ")
sendF = read()

write("Write protocol: ")
protocol = read()

if id == -1 then
    if fs.exists(sendF) then
        textutils.slowPrint("Sending File '"..sendF.."'!")
        rednet.broadcast("RECEIVE", protocol)
        rednet.broadcast(sendF, protocol)
        file = fs.open(sendF, "r")
        rednet.broadcast(file.readAll(), protocol)
        file.close()
    else
        print(sendF.." does not exist")
        return
    end
else
    if fs.exists(sendF) then
        textutils.slowPrint("Sending file '"..sendF.."' to "..id)
        F = fs.open(sendF, "r")
        rednet.send(id, "RECEIVE", protocol)
        rednet.send(id, sendF, protocol)
        rednet.send(id, F.readAll(), protocol)
        F.close()
    else
        print(sendF.." does not exist!")
        return
    end
end