Computer Craft: RC Turtle (CLIENT) (allows to accept 3 args)

rednet.open("right")
while true do
local a, b, c = rednet.receive()
local d, e, f = rednet.receive()
local g, h, i = rednet.receive()
local j, k, l = rednet.receive()
print(b, e, h, k)
if (e == ".") and (h == ".") and (k == ".") then
shell.run(b)
end
if (e ~= ".") and (h == ".") and (k == ".") then
shell.run(b,e)
end
if (e ~= ".") and (h ~= ".") and (k == ".") then
shell.run(b,e,h)
end
if (e ~= ".") and (h ~= ".") and (k ~= ".") then
shell.run(b,e,h,k)
end
end