check-hdd.sh

#!/bin/bash

# 1. Add /usr/local/sbin to the current script's PATH
export PATH="/usr/local/sbin:$PATH"

# 2. Verify smartctl is accessible
if ! command -v smartctl &> /dev/null; then
    echo "Error: smartctl not found. Please ensure it is installed in /usr/local/sbin."
    exit 1
fi

# 3. Check for sudo/root privileges
if [[ $EUID -ne 0 ]]; then
   echo "This script must be run with sudo to access disk hardware."
   exit 1
fi

echo "Searching for physical disks..."

# 4. Get a list of all physical disk identifiers (e.g., /dev/disk0, /dev/disk1)
# We filter diskutil to find 'physical' disks and ignore partitions/synthesized disks
DISKS=$(diskutil list | grep "(\(internal\|external\), physical)" | awk '{print $1}')

if [ -z "$DISKS" ]; then
    echo "No physical disks detected."
    exit 0
fi

# 5. Loop through each disk and output SMART info
for DISK in $DISKS; do
    echo "========================================================================="
    echo " SMART REPORT FOR: $DISK"
    echo "========================================================================="

    # -a displays all SMART information
    # Using 'smartctl' directly now that PATH is updated
    smartctl -a "$DISK"

    echo -e "\n"
done