Installs the tools used throughout the rest of the book. Run after updating the system.

#!/bin/bash
# 03-verify-install.sh — Verify Fedora installation
# Website: nextsteplinux.com/lf3

echo "=========================================="
echo "      FEDORA VERIFICATION REPORT          "
echo "=========================================="

# 1. Fedora Version
echo -e "\n--- Fedora Version ---"
cat /etc/fedora-release

# 2. Kernel Version
echo -e "\n--- Kernel Version ---"
uname -r

# 3. Disk Layout and Btrfs Subvolumes
# Fedora defaults to Btrfs, which uses subvolumes instead of traditional partitions.
echo -e "\n--- Disk Layout ---"
lsblk
echo -e "\n--- Btrfs Subvolumes ---"
sudo btrfs subvolume list /

# 4. SELinux Status
# Critical for Fedora/Red Hat administration and certification exams.
echo -e "\n--- SELinux Status ---"
getenforce

# 5. Memory and Swap Status
echo -e "\n--- Swap Status ---"
swapon --show
echo -e "\n--- Memory Usage ---"
free -h

# 6. Network Connectivity
echo -e "\n--- Network Connectivity ---"
if ping -c 2 google.com &> /dev/null; then
    echo "Status: Network OK"
else
    echo "Status: Network FAILED"
fi

echo -e "\n=========================================="
echo "          Verification Complete           "
echo "=========================================="