Show SMART attributes of a disk

Prints the drive’s attribute table. What matters is the RAW_VALUE column for Reallocated_Sector_Ct, Current_Pending_Sector and Offline_Uncorrectable: anything above 0, and especially rising values, is a reason to replace the disk. Power_On_Hours shows its age.

Note: For NVMe SSDs, smartctl -A prints a different list; the important values there are Percentage Used and Media and Data Integrity Errors. Package: apt install smartmontools.