update doc: added tar doc

Linux/LPIC1/04-dpkg.md

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+
+# 📦 `dpkg` – Debian Package Manager
+
+`dpkg` is the package manager for Debian-based Linux distributions. It is used to install, remove, and manage `.deb` packages directly.
+
+### 📘 Basic Syntax
+
+```bash
+dpkg [<option>...] <command>
+```
+
+---
+
+## 🌐 Finding Packages
+
+You can browse and search for Debian packages at [pkgs.org](https://pkgs.org).
+
+---
+
+## 📋 Listing Installed Packages
+
+```bash
+dpkg -l
+dpkg --list
+```
+
+---
+
+## 📥 Installing a Package
+
+```bash
+dpkg -i <package.deb>
+dpkg --install <package.deb>
+```
+
+> ⚠️ If there are missing dependencies, run:
+
+```bash
+apt install -f
+```
+
+---
+
+## 📂 Viewing Package Contents
+
+```bash
+dpkg -c <package.deb>
+dpkg --contents <package.deb>
+```
+
+---
+
+## ℹ️ Getting Package Info
+
+```bash
+dpkg -I <package.deb>
+dpkg --info <package.deb>
+```
+
+---
+
+## 📁 Listing Installed Files
+
+```bash
+dpkg -L <package-name>
+dpkg --listfiles <package-name>
+```
+
+---
+
+## 🧹 Removing a Package (and its config files)
+
+```bash
+dpkg -p <package-name>
+dpkg --purge <package-name>
+```
+
+---
+
+## 📝 Checking Package Status
+
+```bash
+dpkg -s <package-name>
+dpkg --status <package-name>
+```
+
+---
+
+## 🔧 Reconfiguring a Package
+
+```bash
+dpkg-reconfigure <package-name>
+```
+