mirror of https://github.com/FEX-Emu/xxHash.git synced 2024-12-04 04:31:59 +00:00

Takayuki MATSUOKA 96abe78db9 Add EXIT STATUS, EXAMPLES, version number to xxhsum.1

Makefile
  - Add version number XXHSUM_VERSION
  - Add ronn's options to add version number

xxhsum.1.md

  - Add `EXIT STATUS` and `EXAMPLE` section

2016-02-21 09:46:58 +09:00

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xxhsum(1) -- print or check xxHash checksums

SYNOPSIS

xxhsum [] ... [] ...

DESCRIPTION

Print or check xxHash (32 or 64bit) checksums. When is -, read standard input.

xxhsum supports a command line syntax similar but not indentical to md5sum(1). Differences are: xxhsum doesn't have text/binary mode switch (-b, -t); xxhsum always treats file as binary file; xxhsum doesn't have short option switch for warning (-w). xxhsum has hash bit width switch (-H);

OPTIONS

-c, --check: Read xxHash sums from the s and check them
-H: Hash selection. means 0=32bits, 1=64bits. Default value is 1 (64bits)

The following four options are useful only when verifying checksums (-c)

--quiet: Exit non-zero for improperly formatted checksum lines
--strict: Don't print OK for each successfully verified file
--status: Don't output anything, status code shows success
--warn: Warn about improperly formatted checksum lines

EXIT STATUS

xxhsum exit 0 on success, 1 if at least one file couldn't be read or doesn't have the same checksum as the -c option.

EXAMPLES

Output xxHash (64bit) checksum values of specific files to standard output

$ xxhsum -H1 foo bar baz

Output xxHash (32bit) checksum values of specific files to standard output, and redirect it to xyz.xxhash

$ xxhsum -H0 foo bar baz > xyz.xxhash

Read xxHash sums from specific file and check them

$ xxhsum -c xyz.xxhash

BUGS

Report bugs at: https://github.com/Cyan4973/xxHash/issues/

AUTHOR

Yann Collet

1.7 KiB Raw Blame History