You can check Hard disk full details by using Five command as shown in below examples with screen shot.
Command to Check hard disk Details.
1. fdisk :- Display All partition with File System details But it will not show the disk partition size
#fdisk -l

2. sfdisk -l -uM :- As shown in below image that Output of sfdisk is almost the same as the fdisk, with only one difference is that it
Show size of each partition in MB
#sfdisk -l -uM
3. parted :- this command let you view the disk partitions details as well as it can modify the partition too.
#parted -l
4. lsblk : -
this command gives you storage blocks including the disk partition and optical drives.
Not only has it given details on the mount points, but the size of the partition.
#lsblk
5. blkid :- This command show you the file system type and attributes like universal unique identifiers (UUID) of block devices.
#blkid