Initial commit: update manager with examples and README

README.md

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+# Update Manager
+
+Lightweight SSH-based update manager for Linux systems.
+
+## Features
+
+- Check for updates across multiple hosts
+- Run upgrades remotely via SSH
+- Run autoremove
+- Simple inventory file
+- No external dependencies
+
+## Usage
+
+./lanx-update.sh check
+./lanx-update.sh update
+./lanx-update.sh autoremove
+./lanx-update.sh full
+
+## Hosts file format
+
+name|ip|ssh_user
+
+Example:
+
+server1|192.168.1.10|user
+
+## Config
+
+HOSTS_FILE="/opt/lanx/hosts.conf"
+NTFY_URL=""