sign

function peripheral.find(pType)
  pList = {}
  for _,pName in pairs(peripheral.getNames()) do
    if peripheral.getType(pName) == pType then
      table.insert(pList, peripheral.wrap(pName))
    end
  end
  return unpack(pList)
end

local colorSymbol = ""

file = fs.open("colorSymbol","wb")
file.write(194)
file.write(167)
file.close()

file = fs.open("colorSymbol", "r")
colorSymbol = file.readAll()
file.close()

local sign = peripheral.find("sign")

args = {...}

if args[1] and args[2] and tonumber(args[1]) then
  local line = tonumber(args[1])
  local text = ""

  for i=2, #args, 1 do
    text = text .. args[i]
    if args[i+1] then
       text = text .. " "
    end
  end

  text = text:gsub("&", colorSymbol)
  sign.setLine(line,text)
  return
end

print("Usage: sign <line> <text>")