Add update_apt_proxy_all.sh script with interactive proxy configuration for LXC containers and VMs

README.md

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+# Proxmox Scripts
+
+A professional collection of automation and management scripts for Proxmox environments, including LXC containers, VMs, and node configuration.
+
+## Repository Structure
+
+- `scripts/` — All automation and management scripts for Proxmox.
+  - `misc/` — Miscellaneous scripts, including `update_apt_proxy_all.sh`.
+- `docs/` — Documentation and usage guides for each script.
+
+## Getting Started
+
+Clone the repository:
+
+```bash
+git clone https://git.lewsion.com/endrence/proxmox-scripts.git
+cd proxmox-scripts
+```
+
+## Usage
+
+Place your scripts in the `scripts/` directory. Each script should be documented in the `docs/` folder or within the script itself.
+
+### Example: update_apt_proxy_all.sh
+
+Automates apt-cacher-ng proxy configuration for all LXC containers, VMs (with QEMU Guest Agent), and optionally the Proxmox node itself.
+
+Run locally:
+```bash
+bash scripts/misc/update_apt_proxy_all.sh
+```
+Or run directly from the raw link:
+```bash
+bash <(curl -s https://git.lewsion.com/endrence/proxmox-scripts/raw/branch/main/scripts/misc/update_apt_proxy_all.sh)
+```
+
+See `docs/update_apt_proxy_all.md` for full documentation.
+
+## Adding New Scripts
+
+- Add new scripts to the `scripts/` directory (organize in subfolders as needed).
+- Document each script in the `docs/` folder or within the script file.
+- Update this README with a brief description of new scripts.
+
+## Contribution
+
+Contributions are welcome! Please:
+- Follow the existing folder structure and documentation style.
+- Document your scripts for easier usage and maintenance.
+- Submit pull requests with clear descriptions of changes.
+
+## License
+
+MIT