docs: add UI screenshots and logging section

README.md

@@ -1,4 +1,4 @@
-# 🖥️ Update Manager - Version: 0.3.0
+# 🖥️ Update Manager
 
 Simple CLI tool to check and manage updates across multiple Ubuntu systems over SSH.
 
@@ -26,10 +26,10 @@ Built for Lanx environments – lightweight, fast and no unnecessary dependencie
 ## Features
 
 * Check updates on multiple hosts
-* Run checks remotely over SSH
+* Run updates remotely over SSH
+* Interactive CLI menu (dialog-based UI)
+* Centralized logging
 * Simple config files
-* Built-in logging (file + terminal)
-* Dialog-based UI menu
 * No agents required
 * Works with existing SSH setup
 
@@ -37,12 +37,20 @@ Built for Lanx environments – lightweight, fast and no unnecessary dependencie
 
 ## Update Manager UI
 
+### Main menu
+
 <p align="center">
-  <img src="update-manager-ui.png" width="50%" alt="Update Manager CLI UI">
+  <img src="docs/images/menu-main.png" width="50%" alt="Main menu">
+</p>
+
+### Log menu
+
+<p align="center">
+  <img src="docs/images/menu-logs.png" width="50%" alt="Log menu">
 </p>
 
 <p align="center">
-  <em>Lightweight • Terminal-based • Works over SSH</em>
+  <em>Lightweight • No dependencies • Works over SSH</em>
 </p>
 
 ---
@@ -54,7 +62,7 @@ git clone https://github.com/YOUR-USER/update-manager.git
 cd update-manager
 
 sudo apt update
-sudo apt install -y dialog openssh-client
+sudo apt install dialog openssh-client
 
 sudo mkdir -p /opt/update-manager
 sudo cp update-manager.sh update-manager-ui.sh dialogrc /opt/update-manager/
@@ -62,8 +70,8 @@ sudo cp update-manager.sh update-manager-ui.sh dialogrc /opt/update-manager/
 sudo chmod +x /opt/update-manager/update-manager.sh
 sudo chmod +x /opt/update-manager/update-manager-ui.sh
 
-sudo ln -sf /opt/update-manager/update-manager.sh /usr/local/bin/update-manager
+sudo ln -s /opt/update-manager/update-manager.sh /usr/local/bin/update-manager
-sudo ln -sf /opt/update-manager/update-manager-ui.sh /usr/local/bin/update-manager-ui
+sudo ln -s /opt/update-manager/update-manager-ui.sh /usr/local/bin/update-manager-ui
 ```
 
 ---
@@ -134,6 +142,12 @@ server3       192.168.1.30    user
 
 ## Usage
 
+### Check updates
+
+```bash
+update-manager check
+```
+
 ### Start UI
 
 ```bash
@@ -142,42 +156,25 @@ update-manager-ui
 
 ---
 
-### Check updates (CLI)
-
-```bash
-update-manager check
-```
-
----
-
 ## Logging
 
-The tool logs both to terminal and file.
+Log file location:
-
-### Primary location
 
 ```bash
 /opt/update-manager/log/update-manager.log
 ```
 
-### Fallback location
+View log:
 
 ```bash
-~/update-manager/log/update-manager.log
+less /opt/update-manager/log/update-manager.log
 ```
 
-### Notes
+Follow log:
 
-* Log directory is created automatically
+```bash
-* Log file is created automatically
+tail -f /opt/update-manager/log/update-manager.log
-* Output is written to both terminal and file
+```
-* Log levels:
-
-  * INFO
-  * WARN
-  * ERROR
-
-Logs can be viewed directly from the UI.
 
 ---
 
@@ -189,8 +186,8 @@ Logs can be viewed directly from the UI.
 ├── update-manager-ui.sh
 ├── update-manager.conf
 ├── hosts.conf
-└── log/
+├── log/
-    └── update-manager.log
+│   └── update-manager.log
 ```
 
 ---
@@ -199,6 +196,7 @@ Logs can be viewed directly from the UI.
 
 * Uses SSH to connect to each host
 * Runs `apt` commands remotely
+* Logs results locally
 * No agents or services needed
 * Designed for simple and efficient operations
 
@@ -209,7 +207,6 @@ Logs can be viewed directly from the UI.
 * SSH access to all hosts
 * SSH keys recommended (no password prompts)
 * Ubuntu/Debian-based systems
-* `dialog` (for UI)
 
 ---
 
@@ -218,7 +215,6 @@ Logs can be viewed directly from the UI.
 * 🔔 Notifications (ntfy / push alerts)
 * 🌐 Web interface
 * 📧 Email reporting
-* 📜 Advanced logging / audit trail
 * 📊 Basic monitoring (status, last check, pending updates)
 * 🧩 Plugin system (extensible modules)
 * 🔐 Security & compliance checks

update-manager-ui.sh

@@ -11,24 +11,85 @@ get_log_file() {
 
     if [[ -f "$primary" ]]; then
         echo "$primary"
-    else
+    elif [[ -f "$fallback" ]]; then
         echo "$fallback"
+    else
+        echo ""
     fi
 }
 
+show_log_menu() {
+    while true; do
+        log_choice=$(dialog --clear \
+            --backtitle "Update Manager" \
+            --title "Log menu" \
+            --menu "Select log action:" 18 60 10 \
+            1 "View full log" \
+            2 "Follow log live" \
+            3 "Show log location" \
+            4 "Show last 20 log lines" \
+            0 "Back" \
+            3>&1 1>&2 2>&3)
+
+        clear
+
+        case "$log_choice" in
+            1)
+                log_file="$(get_log_file)"
+                if [[ -n "$log_file" ]]; then
+                    less "$log_file"
+                else
+                    echo "No log file found yet."
+                    read -rp "Press Enter to continue..."
+                fi
+                ;;
+            2)
+                log_file="$(get_log_file)"
+                if [[ -n "$log_file" ]]; then
+                    echo "Press Ctrl+C to stop"
+                    tail -n 20 -f "$log_file"
+                else
+                    echo "No log file found yet."
+                fi
+                read -rp "Press Enter to continue..."
+                ;;
+            3)
+                log_file="$(get_log_file)"
+                if [[ -n "$log_file" ]]; then
+                    echo "Log file:"
+                    echo "$log_file"
+                else
+                    echo "No log file found yet."
+                fi
+                read -rp "Press Enter to continue..."
+                ;;
+            4)
+                log_file="$(get_log_file)"
+                if [[ -n "$log_file" ]]; then
+                    tail -n 20 "$log_file"
+                else
+                    echo "No log file found yet."
+                fi
+                read -rp "Press Enter to continue..."
+                ;;
+            0|"")
+                break
+                ;;
+        esac
+    done
+}
+
 while true; do
     choice=$(dialog --clear \
         --backtitle "Update Manager" \
         --title "Choose an action" \
-        --menu "Select option:" 16 60 9 \
+        --menu "Select option:" 20 60 10 \
         1 "Check all hosts" \
         2 "View hosts file" \
         3 "Edit hosts file" \
         4 "Add host" \
         5 "Remove host" \
-        6 "View full log" \
+        6 "Log menu" \
-        7 "Follow log live" \
-        8 "Show log location" \
         0 "Exit" \
         3>&1 1>&2 2>&3)
 
@@ -40,12 +101,7 @@ while true; do
             read -rp "Press Enter to continue..."
             ;;
         2)
-            if [[ -f "$HOSTS_FILE" ]]; then
+            less "$HOSTS_FILE"
-                less "$HOSTS_FILE"
-            else
-                echo "Hosts file not found: $HOSTS_FILE"
-                read -rp "Press Enter to continue..."
-            fi
             ;;
         3)
             nano "$HOSTS_FILE"
@@ -54,34 +110,27 @@ while true; do
             read -rp "Name: " name
             read -rp "IP: " ip
             read -rp "User: " user
-            echo "$name $ip $user" >> "$HOSTS_FILE"
+            if [[ -z "$name" || -z "$ip" || -z "$user" ]]; then
-            echo "Host added."
+                echo "All fields are required."
+            else
+                echo "$name $ip $user" >> "$HOSTS_FILE"
+                echo "Host added."
+            fi
             read -rp "Press Enter to continue..."
             ;;
         5)
-            if [[ -f "$HOSTS_FILE" ]]; then
+            nl -w2 -s'. ' "$HOSTS_FILE"
-                nl -w2 -s'. ' "$HOSTS_FILE"
+            read -rp "Line to remove: " line
-                read -rp "Line to remove: " line
+            if [[ "$line" =~ ^[0-9]+$ ]]; then
                 sed -i "${line}d" "$HOSTS_FILE"
                 echo "Host removed."
             else
-                echo "Hosts file not found: $HOSTS_FILE"
+                echo "Invalid line number."
             fi
             read -rp "Press Enter to continue..."
             ;;
         6)
-            less "$(get_log_file)"
+            show_log_menu
-            ;;
-        7)
-            echo "Following log: $(get_log_file)"
-            echo "Press Ctrl+C to stop."
-            tail -f "$(get_log_file)"
-            read -rp "Press Enter to continue..."
-            ;;
-        8)
-            echo "Log file:"
-            echo "$(get_log_file)"
-            read -rp "Press Enter to continue..."
             ;;
         0|"")
             clear