ksu(template) - phpMan
btrfs-scrub (8) - scrub btrfs filesystem, verify block checksums cksum (1) - checksum and count the bytes in a file cksum (1p) - write file checksums and sizes fipshmac (8) - create FIPS-140-2 validation checksum files innochecksum (1) - offline InnoDB file checksum utility shasum (1) - Print or Check SHA Checksums sum (1) - checksum and count the blocks in a file tc-csum (8) - checksum update action