for {"input.txt", "`Abdu'l-Bahá.txt"} as name do
    if io.exists(name) then
        print($"{name} file exists and has a size of {io.filesize(name)} bytes.")
    else
        print($"{name} file does not exist.")
    end
end

local dir = "docs"
-- If it exists get number of files it contains.
if io.isdir(dir) then
    local files = #io.listdir(dir)
    print($"{dir} directory exists and contains {files} files.")
else
    print($"{dir} directory does not exist.")
end