findHash.py - Locate 4k fragments of a subject file in one or more other files or devices. Usage: findHash.py /path/to/subject {/dev/sdX|/path/to/image} [/dev/sdY ...] The subject file is read 4k at a time, and each 4k block is hashed and recorded in a dictionary. Any tail fragment less than 4k is discarded. The each device or image file is read in turn, 4k at a time. Each 4k block is hashed and looked up in the subject's hash dictionary. Where consecutive 4k blocks in a device or image file match consecutive 4k blocks in the subject file, the matches are printed with the corresponding offset information.