hexdump experience

>> Show the hex and ascill data of a specified file
# hexdump -C fingerprint.dat
00000000 0a 00 00 00 49 2c e7 24 61 6c 65 78 31 30 30 00 |....I,.$alex100.|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 00 00 00 00 00 00 00 00 01 00 00 00 8c 71 66 aa |.............qf.|
00000030 00 00 00 00 01 00 00 00 |........|
00000038