update doc: added tar doc

Linux/LPIC1/11-tar.md

@@ -0,0 +1,143 @@
+# 📦 Linux Compression & Archiving Cheatsheet
+
+## 🔧 Tar Command Basics
+
+The `tar` command is used to create, extract, and manage archive files.
+
+**Syntax:**
+
+```bash
+tar [options] [archive_name.tar] [file(s)/directory]
+```
+
+### 🛠 Create a `.tar` Archive
+
+```bash
+tar -cf archive_file.tar file1 file2 dir1
+```
+
+* `-c`: Create a new archive
+* `-f`: Specify the archive file name
+
+### 🛠 Create with Verbose Output
+
+```bash
+tar -cvf archive_file.tar file1 file2 dir1
+```
+
+* `-v`: Verbose mode (shows progress)
+
+### 📂 Extract a `.tar` Archive
+
+```bash
+tar -xf archive_file.tar
+```
+
+```bash
+tar -xvf archive_file.tar
+```
+
+* `-x`: Extract files
+
+---
+
+## 🗜 Gzip Compression
+
+**Gzip** (GNU zip) is a fast, commonly used compression tool.
+
+### 🔧 Create `.tar.gz` Archive
+
+```bash
+tar -czf archive_file.tar.gz file1 file2 dir1
+```
+
+* `-z`: Compress using gzip
+
+### 🔧 Verbose Creation
+
+```bash
+tar -czvf archive_file.tar.gz file1 file2 dir1
+```
+
+### 📂 Extract `.tar.gz`
+
+```bash
+tar -xzf archive_file.tar.gz
+```
+
+```bash
+tar -xzvf archive_file.tar.gz
+```
+
+---
+
+## 🗜 Bzip2 Compression
+
+**Bzip2** offers better compression than gzip but is slower.
+
+### 🔧 Create `.tar.bz2` Archive
+
+```bash
+tar -cjf archive_file.tar.bz2 file1 file2 dir1
+```
+
+* `-j`: Compress using bzip2
+
+### 🔧 Verbose Creation
+
+```bash
+tar -cjvf archive_file.tar.bz2 file1 file2 dir1
+```
+
+### 📂 Extract `.tar.bz2`
+
+```bash
+tar -xjf archive_file.tar.bz2
+```
+
+```bash
+tar -xjvf archive_file.tar.bz2
+```
+
+---
+
+## 🗜 XZ Compression
+
+**XZ** provides the best compression ratios but is the slowest.
+
+### 🔧 Create `.tar.xz` Archive
+
+```bash
+tar -cJf archive_file.tar.xz file1 file2 dir1
+```
+
+* `-J`: Compress using xz
+
+### 🔧 Verbose Creation
+
+```bash
+tar -cJvf archive_file.tar.xz file1 file2 dir1
+```
+
+### 📂 Extract `.tar.xz`
+
+```bash
+tar -xJf archive_file.tar.xz
+```
+
+```bash
+tar -xJvf archive_file.tar.xz
+```
+
+---
+
+## 📊 Compression Format Comparison
+
+| Feature             | `gzip`       | `bzip2`    | `xz`      |
+| ------------------- | ------------ | ---------- | --------- |
+| Compression Speed   | Fast         | Slow       | Slowest   |
+| Decompression Speed | Fast         | Slower     | Moderate  |
+| Compression Ratio   | Good         | Better     | **Best**  |
+| File Extension      | `.tar.gz`    | `.tar.bz2` | `.tar.xz` |
+| Common Use          | Web, general | Backups    | Archival  |
+