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cksum - cksum

NAME  SYNOPSIS  DESCRIPTION  OPTIONS 

NAME

cksum − cksum

SYNOPSIS

cksum [OPTIONS] [FILE]...

DESCRIPTION

Print CRC and size for each file

OPTIONS

−a, −−algorithm <ALGORITHM>

select the digest type to use. See DIGEST below [possible values: sysv, bsd, crc, crc32b, md5, sha1, sha2, sha3, blake2b, sm3, sha224, sha256, sha384, sha512, blake3, shake128, shake256]

−−untagged

create a reversed style checksum, without digest type

−−tag

create a BSD style checksum, undo −−untagged (default)

−l, −−length <length>

digest length in bits; must not exceed the max for the blake2 algorithm and must be a multiple of 8

−−raw

emit a raw binary digest, not hexadecimal

−−strict

exit non−zero for improperly formatted checksum lines

−c, −−check

read hashsums from the FILEs and check them

−−base64

emit a base64 digest, not hexadecimal

−w, −−warn

warn about improperly formatted checksum lines

−−status

don’t output anything, status code shows success

−−quiet

don’t print OK for each successfully verified file

−−ignore−missing

don’t fail or report status for missing files

−z, −−zero

end each output line with NUL, not newline, and disable file name escaping

−h, −−help

Print help

−V, −−version

Print version

DIGEST determines the digest algorithm and default output format:

− sysv: (equivalent to sum −s) − bsd: (equivalent to sum −r) − crc: (equivalent to cksum) − crc32b: (only available through cksum) − md5: (equivalent to md5sum) − sha1: (equivalent to sha1sum) − sha2: (equivalent to sha{224,256,384,512}sum) − sha3: (only available through cksum) − blake2b: (equivalent to b2sum) − sm3: (only available through cksum)


Updated 2026-06-01 - jenkler.se | uex.se