System administration command. Print ext2/ext3 information about device’s superblock and blocks group.
Linux Commad Options: -b List blocks marked as bad. -f Force display of filesystems with unknown feature flags. -h Display superblock information only. -i Specify device is an image file created by e2image. -o superblock=superblock
Specify location of the superblock. -o blocksize=blocksize
Specify blocksize to use when examining filesystem. -x Print block numbers in hexadecimal. -V Print version number and exit.