Update README for bash script version

README.md

@@ -1,17 +1,16 @@
 # Home Assistant Legacy Template Migration
 
-Automated script to fix all **67 template deprecation warnings** by migrating from legacy `platform: template` syntax to modern `template:` syntax.
+**Pure Bash script** to fix all **67 template deprecation warnings** by migrating from legacy `platform: template` syntax to modern `template:` syntax.
 
-## ⚠️ What This Fixes
-
-Home Assistant 2026.6 will remove support for legacy template syntax. This script automatically migrates all your templates to the modern format.
+✅ **No Python required** - Works directly in SSH add-on!
 
 ## 🚀 Quick Start
 
 ```bash
 cd /config
-wget https://gitea.hideawaygaming.com.au/jessikitty/ha-template-migration/raw/branch/main/migrate_templates.py
-python3 migrate_templates.py
+wget https://gitea.hideawaygaming.com.au/jessikitty/ha-template-migration/raw/branch/main/migrate_templates.sh
+chmod +x migrate_templates.sh
+bash migrate_templates.sh
 ```
 
 Then:
@@ -20,37 +19,59 @@ ha core check    # Verify configuration
 ha core restart  # Apply changes
 ```
 
+## ⚠️ What This Fixes
+
+Home Assistant 2026.6 will remove support for legacy template syntax.
+
+**Before (deprecated):**
+```yaml
+binary_sensor:
+  - platform: template
+    sensors:
+      router_authenticated:
+        friendly_name: "Router Authenticated"
+        value_template: "{{ states('input_text.router_token') != '' }}"
+```
+
+**After (modern):**
+```yaml
+template:
+  - binary_sensor:
+      - name: "Router Authenticated"
+        state: "{{ states('input_text.router_token') != '' }}"
+        unique_id: router_authenticated
+```
+
 ## 📊 What It Does
 
-✅ Scans all YAML files for legacy templates  
+✅ Pure Bash - no Python dependencies  
+✅ Scans all YAML files  
 ✅ Creates timestamped backups  
-✅ Converts to modern `template:` syntax  
-✅ Preserves all template features  
-✅ Updates `configuration.yaml`  
+✅ Converts to modern syntax  
+✅ Updates configuration.yaml  
 ✅ Generates restore script  
 
 ## 🛡️ Safety Features
 
-- **Automatic Backups**: All files backed up before changes
-- **Easy Restore**: One command to rollback if needed
-- **No Data Loss**: Preserves all template configurations
-- **Validation**: Check config before restart
+- **No Dependencies** - Works in SSH add-on without Python
+- **Automatic Backups** - All files backed up before changes
+- **Exit on Error** - Stops if any step fails
+- **Easy Restore** - One command rollback
+- **No Data Loss** - Preserves all configurations
 
 ## 📝 Expected Output
 
 ```
 ======================================================================
-Home Assistant Legacy Template Migration
+Home Assistant Legacy Template Migration (Bash)
 ======================================================================
 
+✓ Created backup: /config/backups/template_migration_20251223_123456
+
 ℹ Found 67 legacy template entities:
   - 15 sensor(s)
   - 52 binary_sensor(s)
 
-ℹ Creating backups...
-  ✓ Backed up: sensor.yaml
-  ✓ Backed up: binary_sensor.yaml
-
 ✓ MIGRATION COMPLETE
 Migrated: 67 template entities
 ```
@@ -62,10 +83,17 @@ bash /config/backups/template_migration_YYYYMMDD_HHMMSS/restore.sh
 ha core restart
 ```
 
-## 📚 Full Documentation
-
-See detailed examples, troubleshooting, and conversion patterns in the [full documentation](https://gitea.hideawaygaming.com.au/jessikitty/ha-template-migration).
-
 ## 🎯 Result
 
-After running, all 67 repair warnings will be cleared! ✅
+After running, all **67 repair warnings will be cleared!** ✅
+
+## 💡 Why Bash?
+
+✅ Works in SSH add-on without installing packages  
+✅ Faster execution  
+✅ No dependency issues  
+✅ Native YAML parsing with awk  
+
+---
+
+**Repository:** https://gitea.hideawaygaming.com.au/jessikitty/ha-template-migration