blkcat - Display the contents of file system data unit in a disk image.
blkcat [-ahswvV] [-f fstype] [-u unit_size] [-i imgtype] [-o imgoffset] [-b
dev_sector_size] image [images] unit_addr [num]
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
- 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.
- Display the contents in hexdump
- Display statistics on the image (unit size, file block size, and number of
- -u unit_size
- Specify the size of the default data unit for raw, blkls, and swap
- -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
- Verbose output to stderr.
- Display version.
- 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.
- Address of the disk unit to display. The size of a unit on this file
system can be determined using the -s option.
- 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.
# blkcat -hw image 264 4
# blkcat -hw image 264
Brian Carrier <carrier at sleuthkit dot org>
Send documentation updates to <doc-updates at sleuthkit dot