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# dcfldd
> Enhanced version of dd for forensics and security.
> More information: <https://dcfldd.sourceforge.net/>.
- Copy a disk to a raw image file and hash the image using SHA256:
`dcfldd if={{/dev/disk_device}} of={{file.img}} hash=sha256 hashlog={{file.hash}}`
- Copy a disk to a raw image file, hashing each 1 GB chunk:
`dcfldd if={{/dev/disk_device}} of={{file.img}} hash={{sha512|sha384|sha256|sha1|md5}} hashlog={{file.hash}} hashwindow={{1G}}`