ssum - segmented sum
generates md5 sums for every segment of a file, check against that record for bad segments, can create a rip file which is used by ssum to rip segments of data from valid copies of the files into a single file, rip function reads these files and creates an inject file which can be transfered back to the location that contains corrupt files and injected into them .
- Example
generate a list of sums
ssum -o sums test.bin test2.bin
check them against another copy
ssum -c sums
create a rip file for file/segments that do not match ssum -c sums -g
use that rip file on the good files to extract the data you need ssum -r sums.rip
use the inject file created by the rip to fix corruption ssum -i sums.inj