Format

write("Type \"format\" to format the entire PC: ");

if (io.read()~="format")
then
    printError("Canceled");
    return;
end

for _,file in ipairs(fs.list(""))
do
    if (file~="rom")
    then
        write("deleting "..file.."...");
        fs.delete(file);
        sleep(0.5);
        write(" done.\n");
    end
end