The Sleuth Kit ver 4.4.2

Missing image name usage: blkcalc [-dsu unit_addr] [-vV] [-f fstype] [-i imgtype] [-b dev_sector_size] [-o imgoffset] image [images] Slowly calculates the opposite block number One of the following must be given: -d: The given address is from a 'dd' image -s: The given address is from a 'blkls -s' (slack) image -u: The given address is from a 'blkls' (unallocated) image -f fstype: The file system type (use '-f list' for supported types) -i imgtype: The format of the image file (use '-i list' for supported types) -b dev_sector_size: The size (in bytes) of the device sectors -o imgoffset: The offset of the file system in the image (in sectors) -v: verbose output to stderr -V: Print version