目录

/etc/update-motd.d

1. 命令00-header

./00-header

Welcome to Ubuntu 18.04.6 LTS (GNU/Linux 5.3.0-62-generic x86_64)

./10-help-text

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

./90-updates-available

扩展安全维护（ESM）Infrastructure 未启用。

3 更新可以立即应用。
要查看这些附加更新，请运行：apt list --upgradable

启用 ESM Infra 来获取未来的额外安全更新
See https://ubuntu.com/esm or run: sudo pro status

./91-release-upgrade

New release '20.04.6 LTS' available.
Run 'do-release-upgrade' to upgrade to it.

./92-unattended-upgrades

2 updates could not be installed automatically. For more details,
see /var/log/unattended-upgrades/unattended-upgrades.log

./95-hwe-eol

Your Hardware Enablement Stack (HWE) is supported until April 2023.