xxhash

Extremely fast non-cryptographic hash algorithm for checksums

brewmacoslinux

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Extremely fast non-cryptographic hash algorithm

xxhashxxh32xxh64xxh128

calculate hash of a file$ xxhash filename.txt

hash multiple files at once$ xxhash file1.txt file2.txt file3.txt

verify file integrity with checksum$ xxhash -c checksums.xxh

hash stdin pipe and output result$ cat largefile.bin | xxh64

hash with 128-bit output for extra collision resistance$ xxh128 myfile.iso