Commands to verify if the attached disk in spinning disk(hdd) or Solid state drive (ssd)

 For any of the below commands if the output is 1 then its is hdd and if it 0 then it is ssd

$ lsblk -d -o name,rota

NAME ROTA

sda     0

sdb     0

sdc     0

(or) 

$ cat /sys/block/sd*/queue/rotational

0

0

0

Information: To find available storage you can do it with command "lsblk"

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