echo
echo "===== RASPBERRY PI MODEL ====="

if [ -r /proc/device-tree/model ]; then
    tr -d '\0' < /proc/device-tree/model
    echo
else
    echo "Device-tree model unavailable"
fi

echo
echo "===== CPU AND BOARD REVISION ====="
grep -E '^(model name|Hardware|Revision|processor)' /proc/cpuinfo

echo
echo "===== MEMORY ====="
free -h 2>/dev/null || free -m

echo
echo "===== OPERATING SYSTEM ====="
if [ -r /etc/os-release ]; then
    cat /etc/os-release
elif [ -r /etc/debian_version ]; then
    echo -n "Debian version: "
    cat /etc/debian_version
else
    echo "OS release information unavailable"
fi

echo
echo "===== KERNEL AND ARCHITECTURE ====="
uname -a
echo -n "Userland bits: "
getconf LONG_BIT 2>/dev/null || echo "unknown"
echo -n "Debian architecture: "
dpkg --print-architecture 2>/dev/null || echo "unknown"

echo
echo "===== STORAGE DEVICES ====="
lsblk -o NAME,SIZE,TYPE,FSTYPE,MOUNTPOINT,MODEL 2>/dev/null || \
    cat /proc/partitions

echo
echo "===== STORAGE SPACE ====="
df -hT 2>/dev/null || df -h

echo
echo "===== NETWORK INTERFACES ====="
ip -brief address 2>/dev/null || ifconfig -a 2>/dev/null

echo
echo "===== TEMPERATURE AND POWER STATUS ====="
if command -v vcgencmd >/dev/null 2>&1; then
    vcgencmd measure_temp
    vcgencmd get_throttled
else
    echo "vcgencmd unavailable on this installation"
fi

echo
echo "===== RECENT SD-CARD OR I/O ERRORS ====="
dmesg 2>/dev/null | grep -Ei 'mmc|I/O error|filesystem error|ext[234].*error' | tail -n 30