change terminal doc into linux dir

Linux/Terminal Multiplexers/screen.md

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+# 🖥️ Mastering `screen` (Terminal Multiplexer)
+
+`screen` is a **terminal multiplexer**. It allows you to:
+
+✨ Start a terminal session that stays alive even if you disconnect.
+✨ Run multiple shell sessions inside a single terminal.
+✨ Detach and reattach to sessions later.
+
+---
+
+## 🚀 Basic Commands
+
+### ▶️ Create a new shell
+
+```bash
+screen
+```
+
+### 📝 Create a new shell with a specific name
+
+```bash
+screen -S session_name
+```
+
+### 📜 Show all active sessions
+
+```bash
+screen -ls
+```
+
+### 🔗 Reattach to a session
+
+```bash
+screen -r session_name
+```
+
+---
+
+## 🛑 Closing Sessions
+
+### ❌ Exit a session (from inside)
+
+```bash
+exit
+```
+
+### 💣 Kill a specific session
+
+```bash
+screen -X -S session_name quit
+```
+
+---
+
+## 🌟 Pro Tips
+
+* You can **detach** from a session with `Ctrl + A` then `D`.
+* Sessions keep running even if you **log out or disconnect**.
+* Great for **long-running processes** (e.g., servers, builds, SSH tasks).
+