shblk - Displays disk blocks, as unformatted hexadecimal
numbers
/sbin/advfs/shblk [-sb start_block] [-bc block_count] special
Specifies the block on which to start. Specifies the number
of blocks to display.
Specifies the device special file for the volume on which
the block(s) are located. You can specify the volume by
either its character or block device special file name.
If you are executing the command from the mount
point for the volume, you must specify the character
device special file, as specifying the block
device special file produces a device busy error.
The shblk command displays the selected blocks as hexadecimal
numbers. The blocks are not formatted to any data or
metadata representation.
You must be the root user to use this command.
The following example shows a user whose current file system
is mounted on /dev/disk/dsk3a attempting to display
block 1 of the a partition on that device. Using the
block device special file for the command does not work;
using the character device special file does work. The
display is truncated on the right due to page width limitations:
# /sbin/advfs/shblk -sb 1 -bc 1 /dev/disk/dsk3a
open: Device busy # /sbin/advfs/shblk -sb 1 -bc 1
/dev/rdisk/dsk3a
1: 47ff041f c0200002 20009800 00000000 a7a10000 d340000a
43c4153e 4... 1: b7fe0018 47ff0411 47ff0412 d34000e8
00000000 47ff041f 2ffe0000 4... 1: 243d0000 20218050
245d0000 204243e0 b7e10000 40211401 40410524 f... 1:
6bfa8001 47ff041f 2ffe0000 47ff041f 243dffff 23deffe0
20217f90 b... 1: a4410000 b53e0008 b55e0010 b57e0018
e440000b 47f00409 47e1040a 4... 1: a62a0000 47e90410
d34004ad e400000c a42a0008 214a0008 4160300b f... 1:
201fffff a75e0000 a53e0008 a55e0010 a57e0018 23de0020
6b9a8001 2... 1: 47eb0400 c3fffff7 47ff041f 47ff041f
23defff0 43f00011 b75e0000 4... 1: 47ff0412 47ff0413
47ff0414 47ff0415 d3400083 4807f680 a75e0000 4... 1:
40003520 23de0010 6b9a8001 47ff041f 23defff0 b75e0000
b53e0008 4... 1: d340049f 47e00412 47e21410 47e90411
47ff0413 47ff0414 47ff0415 d... 1: 4807d689 45207009
e5200002 201fffff c3e00001 43e00000 a75e0000 a... 1:
23de0010 6b9a8001 47ff041f 47ff041f 23deffe0 b75e0000
b53e0008 b... 1: 47f00409 d3400486 203f03ff 47e0040a
400107a2 4441048a e540000c 2... 1: 47e05410 47ff0411
47e90412 47e03413 47ff0414 47ff0415 d3400051 e... 1:
4140352a 21290001 f55ffff5 a75e0000 a53e0008 a55e0010
23de0020 6... #
advfs(4), fs(4)
shblk(8)
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