blkcat - Online in the Cloud

PROGRAM:

NAME

blkcat - Display the contents of file system data unit in a disk image.

SYNOPSIS

blkcat [-ahswvV] [-f fstype] [-u unit_size] [-i imgtype] [-o imgoffset] [-b
dev_sector_size] image [images] unit_addr [num]

DESCRIPTION

blkcat displays num data units (default is one) starting at the unit address unit_addr
from image to stdout in different formats (default is raw). blkcat was called dcat in TSK
versions prior to 3.0.0.

ARGUMENTS

-a Display the contents in ASCII

-f fstype
Specify image as a specific file type. If 'swap' is given here, the image will be
displayed in pages of size 4096 bytes. If 'raw' is given, then 512-bytes is used
as the default size. The '-u' flag can change the default size. Use '-f list' to
list the supported file system types. If not given, autodetection methods are
used.

-h Display the contents in hexdump

-s Display statistics on the image (unit size, file block size, and number of
fragments).

-u unit_size
Specify the size of the default data unit for raw, blkls, and swap images.

-i imgtype
Identify the type of image file, such as raw. Use '-i list' to list the supported
types. If not given, autodetection methods are used.

-o imgoffset
The sector offset where the file system starts in the image.

-b dev_sector_size
The size, in bytes, of the underlying device sectors. If not given, the value in
the image format is used (if it exists) or 512-bytes is assumed.

-v Verbose output to stderr.

-V Display version.

-w Display the contents in an HTML table format.

image [images]
The disk or partition image to read, whose format is given with '-i'. Multiple
image file names can be given if the image is split into multiple segments. If
only one image file is given, and its name is the first in a sequence (e.g., as
indicated by ending in '.001'), subsequent image segments will be included
automatically.

unit_addr
Address of the disk unit to display. The size of a unit on this file system can be
determined using the -s option.

num Number of data units to display.

The basic functionality of blkcat can also be achieved using dd. To determine which inode
has allocated a given unit, the ifind(1) command can be used.

EXAMPLES

# blkcat -hw image 264 4

or

# blkcat -hw image 264

Use blkcat online using onworks.net services