Look at (SUSE), Kickstart (RHEL), or Preseed (Debian). These are installation-time automation, not post-deployment generalization. They complement sysprep; they don't replace it.
Sysprep is crucial when deploying Linux systems in a networked environment. When a Linux system is installed, it generates unique identifiers, such as: linux sysprep
echo "=== Sysprep complete. Shutting down for imaging. ===" shutdown -h now Look at (SUSE), Kickstart (RHEL), or Preseed (Debian)