Networking-Wifi-install

#!/bin/bash

# Debian 12 WiFi Setup Script
# Installs drivers, GUI tools, and configures WiFi management

set -e

echo "=== Debian 12 WiFi Setup Script ==="
echo "This script will install WiFi drivers and GUI configuration tools"
echo

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Function to print colored output
print_status() {
    echo -e "${GREEN}[INFO]${NC} $1"
}

print_warning() {
    echo -e "${YELLOW}[WARN]${NC} $1"
}

print_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

# Check if running as root
if [[ $EUID -eq 0 ]]; then
   print_error "This script should not be run as root. Please run as a regular user."
   exit 1
fi

# Check if sudo is available
if ! command -v sudo &> /dev/null; then
    print_error "sudo is required but not installed. Please install sudo first."
    exit 1
fi

print_status "Starting WiFi setup for Debian 12..."

# Update package lists
print_status "Updating package lists..."
sudo apt update

# Check current WiFi hardware
print_status "Detecting WiFi hardware..."
echo "PCI WiFi devices:"
lspci | grep -i wireless || print_warning "No PCI WiFi devices found"
echo "USB WiFi devices:"
lsusb | grep -i wireless || print_warning "No USB WiFi devices found"
echo

# Install firmware packages
print_status "Installing WiFi firmware and drivers..."
sudo apt install -y \
    firmware-linux \
    firmware-linux-nonfree \
    firmware-realtek \
    firmware-atheros \
    firmware-iwlwifi \
    firmware-brcm80211 \
    firmware-misc-nonfree

# Install wireless tools
print_status "Installing wireless utilities..."
sudo apt install -y \
    wireless-tools \
    wpasupplicant \
    iw \
    rfkill \
    net-tools \
    dnsutils

# Install NetworkManager and GUI
print_status "Installing NetworkManager and GUI components..."
sudo apt install -y \
    network-manager \
    network-manager-gnome

# Detect desktop environment and install appropriate GUI
if command -v gnome-shell &> /dev/null; then
    print_status "GNOME detected - NetworkManager GNOME already installed"
elif command -v plasmashell &> /dev/null; then
    print_status "KDE detected - Installing Plasma NetworkManager..."
    sudo apt install -y plasma-nm
elif command -v xfce4-panel &> /dev/null; then
    print_status "XFCE detected - Installing additional network manager..."
    sudo apt install -y network-manager-gnome
else
    print_status "Installing universal network manager GUI..."
    sudo apt install -y wicd-gtk
fi

# Install additional useful tools
print_status "Installing additional networking tools..."
sudo apt install -y \
    wavemon \
    iperf3 \
    traceroute \
    nmap

# Configure NetworkManager
print_status "Configuring NetworkManager..."

# Stop and disable any conflicting network services
sudo systemctl stop networking 2>/dev/null || true
sudo systemctl disable networking 2>/dev/null || true

# Enable and start NetworkManager
sudo systemctl enable NetworkManager
sudo systemctl start NetworkManager

# Add user to netdev group if not already added
sudo usermod -a -G netdev $USER

# Check if WiFi is blocked by rfkill
print_status "Checking rfkill status..."
rfkill list

# Unblock WiFi if it's blocked
if rfkill list wifi | grep -q "Soft blocked: yes\|Hard blocked: yes"; then
    print_warning "WiFi appears to be blocked. Attempting to unblock..."
    sudo rfkill unblock wifi
fi

# Restart NetworkManager to ensure everything is working
print_status "Restarting NetworkManager..."
sudo systemctl restart NetworkManager

# Wait a moment for NetworkManager to start
sleep 3

# Check NetworkManager status
if systemctl is-active --quiet NetworkManager; then
    print_status "NetworkManager is running successfully!"
else
    print_error "NetworkManager failed to start properly"
fi

# Display available WiFi networks
print_status "Scanning for available WiFi networks..."
nmcli dev wifi list 2>/dev/null || print_warning "WiFi scanning failed - you may need to reboot"

# Final status check
print_status "Checking network interfaces..."
ip link show | grep -E "(wlan|wlp)"

echo
print_status "=== Setup Complete ==="
echo "To connect to WiFi networks, you can use:"
echo "1. GUI: Look for NetworkManager icon in your system tray"
echo "2. Command line: nmcli dev wifi connect 'SSID' password 'PASSWORD'"
echo "3. Alternative GUI: Run 'nm-connection-editor' for detailed network settings"
echo
print_warning "You may need to reboot for all changes to take effect."
echo "After reboot, run: nmcli dev wifi list"
echo

# Create a quick reference file
cat > ~/wifi-commands-reference.txt << 'EOF'
# WiFi Management Quick Reference for Debian 12

## NetworkManager CLI Commands:
# List available networks:
nmcli dev wifi list

# Connect to a network:
nmcli dev wifi connect "SSID" password "PASSWORD"

# Show connection status:
nmcli connection show

# Disconnect from current network:
nmcli dev disconnect wlan0

# Show device status:
nmcli dev status

## GUI Tools:
# NetworkManager GUI: nm-connection-editor
# System tray applet should appear automatically
# Alternative: wicd-gtk (if installed)

## Troubleshooting:
# Check if WiFi is blocked:
rfkill list

# Unblock WiFi:
sudo rfkill unblock wifi

# Restart NetworkManager:
sudo systemctl restart NetworkManager

# Check logs:
journalctl -u NetworkManager -f

# Manual WiFi scan:
sudo iw dev wlan0 scan | grep SSID
EOF

print_status "Created ~/wifi-commands-reference.txt for future reference"

echo "Setup completed successfully!"