bourque:/home/analyst$ sha256deep -r -e -z *
209.180.018.089.02001-156.023...: 391MB of 1405MB done, 00:01:22 left
The last entry shows sha256deep is busy computing the hash for a 1405 MB file. By passing the -e flag, I told the program to estimate time until hash completion. This is useful for processing large files. The resulting hash is eventually shown below.
md5deep and related tools simplify maintaining forensic evidence as the program can rapidly produce hashes in an investigator-friendly format. There's also a FreeBSD port. For forensic applications, you would save the hashes to a file instead of standard output.