Fallout Styled server/terminal installer

local color = colors.green
local w, h = term.getSize()

local serverFiles = {}
    serverFiles.server = "G8jS60D1"
    serverFiles.startup = "pAuEZD46"

local clientFiles = {}
    clientFiles.client = "dSYLZtkX"
    clientFiles.menu = "iz95vBeb"
    clientFiles.startup = "kvwgz7L0"

function init()
    term.setTextColor(color)
    term.setBackgroundColor(colors.black)
    term.clear()
    term.setCursorPos(1,1)
    info("ROBCO INDUSTRIES UNIFIED OPERATING SYSTEM", true)
    info("COPYRIGHT 2019-2020 ROBCO INDUSTRIES", true)
    info("-Server 1-", true)
    info(nil, false)
    info("Terminal Setup", false)
    info("======================", false)
    info("Install for Terminal or Server?", false)
    hr()
    local side = read()
    if side == "server" or side == "Server" then
        server()
    elseif side == "terminal" or side == "Terminal" then
        client()
    else
        term.clear()
        term.setCursorPos(1,1)
    end
end

function hr()
    x, y = term.getCursorPos()
    for i = 1, w, 1 do
        write("-")
    end
    term.setCursorPos(1, y+1)
end

function info(text, isCenter)
    if text == nil then
        term.setCursorPos(1, y+2)
    elseif isCenter then
        x, y = term.getCursorPos()
        x = (w - #text) / 2
        term.setCursorPos(x, y)
        write(text)
        term.setCursorPos(1, y+1)
    else
        print(text)
    end
end

function install(link,file)
    if fs.exists(file) then
        fs.delete(file)
        shell.run("pastebin", "get", link, file)
        print("Updated "..file)
    else
        shell.run("pastebin", "get", link, file)
        print("Installed "..file)
    end
end

function server()
    info("Installing Server", false)
    for f, l in pairs(serverFiles) do
        install(l, f)
    end
end

function client()
    info("Intalling Client", false)
    for f, l in pairs(clientFiles) do
        install(l, f)
    end
end

init()