drive information

	#
	#	lsblk -b -p
	#	lsblk -b -p --json
	#	lsblk -S
	#
	[ZSH] lsblk -b -p

		NAME        MAJ:MIN RM        SIZE RO TYPE MOUNTPOINTS
		/dev/sda      8:0    0 40018599936  0 disk 
		├─/dev/sda1   8:1    0   629145600  0 part /boot/efi
		├─/dev/sda2   8:2    0  1073741824  0 part /boot
		└─/dev/sda3   8:3    0 38313918464  0 part /home
												   /
		/dev/sdb      8:16   0 40018597888  0 disk 
		/dev/zram0  252:0    0  8589934592  0 disk [SWAP]
	
	[ZSH] cat /proc/partitions
	
	[ZSH] hdparm -v /dev/sdb
	
	[ZSH] blockdev --getsz /dev/sdb
		
		78161324
		
	#
	#	https://en.wikipedia.org/wiki/Util-linux
	#	https://github.com/util-linux/util-linux
	#
	[ZSH] fdisk -l
		
		Disk /dev/sdc: 37.27 GiB, 40018597888 bytes, 78161324 sectors
		Disk model: high speed      
		Units: sectors of 1 * 512 = 512 bytes
		Sector size (logical/physical): 512 bytes / 512 bytes
		I/O size (minimum/optimal): 512 bytes / 512 bytes
		
	therefore:
		40,018,597,888
	
		drive path: /dev/sdb
		byte indexes: [ 0, 40018597887 ]
		
		40018597888 / 78161324 = 512

		#
		#	/dev/sda is the operating system drive
		#