🌸 Initial commit — Midori's Linux Dojo

🌸 Midori's Linux Dojo/Phase 1 - Walking/Exercises.md

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+# 🪴 Phase 1: Walking
+
+> Goal: Get comfortable with the Linux command line
+
+---
+
+## 🎯 Exercise 1 — Your First Commands
+
+SSH into **alpine-1** (through hop):
+```bash
+# Who am I?
+whoami                  # → root
+hostname                # → localhost (or your hostname)
+uname -a                # Show full system info
+uptime                  # How long since boot
+
+# Where am I?
+pwd                     # Print working directory
+ls -la /                # List root directory contents
+
+# Make a file
+echo "Hello from Phase 1!" > /root/hello.txt
+ls -l /root/hello.txt   # Check file details
+cat /root/hello.txt      # Read the file
+```
+
+**Repeat on alpine-2 too!**
+
+✅ **Verified by Midori**
+
+---
+
+## 🎯 Exercise 2 — Navigation & File Basics
+
+```bash
+# Explore directories
+ls /
+ls /etc
+ls /var
+ls /home
+
+# Create a directory structure
+mkdir -p /root/lab/{notes,scripts,logs}
+ls -R /root/lab
+
+# Copy and move files
+cp /root/hello.txt /root/lab/notes/
+mv /root/hello.txt /root/lab/backup.txt
+
+# Read system files
+cat /etc/hostname
+cat /etc/os-release
+cat /etc/passwd
+
+# Answer these:
+echo $SHELL             # What shell am I using?
+wc -l /etc/passwd       # How many users?
+uname -r                # Kernel version
+```
+
+### 📝 Questions to answer:
+1. What is your shell?
+2. How many users are listed in `/etc/passwd`?
+3. What kernel version are you running?
+
+---
+
+## 🎯 Exercise 3 — File Permissions
+
+```bash
+# Check permissions
+ls -la /root/lab/notes/
+ls -la /root/lab/
+
+# Change permissions
+chmod 644 /root/lab/notes/hello.txt
+chmod 755 /root/lab/scripts
+
+# Create a script
+echo '#!/bin/sh' > /root/lab/scripts/sayhello.sh
+echo 'echo "Hello from a script!"' >> /root/lab/scripts/sayhello.sh
+chmod +x /root/lab/scripts/sayhello.sh
+./root/lab/scripts/sayhello.sh
+
+# Test permissions
+chmod -x /root/lab/scripts/sayhello.sh
+./root/lab/scripts/sayhello.sh   # What happens?
+```
+
+### 📝 Questions:
+1. What do the numbers `644`, `755`, and `+x` mean?
+2. What happens when you remove execute permission from a script?
+
+---
+
+## 🎯 Exercise 4 — Text Editors
+
+```bash
+# Try nano (easier)
+nano /root/lab/notes/my-notes.txt
+# Type some text, Ctrl+O to save, Ctrl+X to exit
+
+# Try vi (classic)
+vi /root/lab/notes/vi-practice.txt
+# Press 'i' to insert, type something
+# Press Esc, then ':wq' to save and quit
+```
+
+---
+
+## ✅ Phase 1 Complete Checklist
+- [ ] Exercise 1: `whoami`, `uname -a`, file creation
+- [ ] Exercise 2: Directory structure, `cp`, `mv`, `cat`
+- [ ] Exercise 3: `chmod`, permissions understanding
+- [ ] Exercise 4: Text editors (nano + vi)
+
+**Next:** [[Phase 2 - Networking]] 🌐