Should this site and the posting be considered the norm? hddtemp is not included in man7 Linux pages
https://www.systutorials.com/docs/linux/man/8-hddtemp/
Subject: Different implementations of hddtemp , which is the correct one
2>&1 hddtemp with RedHat / Fedora does not need a drive. If no drive is specified It uses output of ls /dev/sd?
2>1 hddtemp with SUSE / Tumbleweed requires a drive to be specified, One must specify /dev/sd{a,b,…etc}
Fedora has hddtemp stored in /usr/bin #available to all
Question is asked for Tumbleweed,. but it may apply to Leap as well
Suse has hddtemp stored in /usr/sbin #reserved for root
With Fedora I use hddtemp to tell me if the drive is sleeping. I can be a regular user
With SUSE hddtemp is privileged. Only as root, I can determine if drive is sleeping,
I would like to have a consistent definition of execution.
The hddtemp -I does not specify if SUSE or Fedora’s way is the correct one.