xxhsum

Print or check xxHash non-cryptographic checksums

TLDR

Calculate XXH64 checksum (default)

$ xxhsum [path/to/file]

Calculate XXH32 checksum

$ xxhsum -H0 [path/to/file]

Calculate XXH128 checksum

$ xxhsum -H2 [path/to/file]

Verify checksums from a file

$ xxhsum -c [path/to/checksums.xxh]

Run benchmark

$ xxhsum -b

SYNOPSIS

xxhsum [OPTION]... [FILE...]xxhsum -b [OPTION]...

xxhsum prints or checks xxHash (32, 64, or 128 bit) checksums. xxHash is an extremely fast non-cryptographic hash function, suitable for integrity checking where speed is important.When no FILE is specified, reads from standard input. The command line syntax is similar to md5sum(1).Equivalent shortcut commands: xxh32sum (same as xxhsum -H0), xxh64sum (same as xxhsum -H1), xxh128sum (same as xxhsum -H2).

PARAMETERS

-H HASHTYPE

Hash algorithm: 0 (XXH32), 1 (XXH64, default), 2 (XXH128), 3 (XXH3). Also accepts 32, 64, 128 as aliases.

-b

Activate benchmark mode

-B BLOCKSIZE

Set benchmark block size in bytes (default: 102400)

-i ITERATIONS

Set number of benchmark iterations (default: 3)

-c, --check FILE

Verify checksums from file

-q, --quiet

Suppress OK messages during verification

-w, --warn

Warn about malformed checksum lines

--strict

Return error on invalid checksum lines

--status

Silent verification; indicate result only via exit code

--tag

Output in BSD-style format

--little-endian

Display checksum in little-endian format (default is big-endian)

-h, --help

Display help

-V, --version

Display version

CAVEATS

Not cryptographically secure. Should not be used for security-sensitive applications. For security, use SHA-256 or similar.