if not install.root or #install.root == 0 then
  install.root = "usr"
end
if install.update then
  io.stderr:write("Please run 'oppm update oppm' from an installed version\nof this program to update oppm.\n")
  return
end
os.execute(install.from:gsub("//","/") .. "usr/bin/oppm install --iKnowWhatIAmDoing -f oppm " .. install.to:gsub("//","/") .. install.root:gsub("//","/"))
