1SHA256SUM(1)                     User Commands                    SHA256SUM(1)
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NAME

6       sha256sum - compute and check SHA256 message digest
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SYNOPSIS

9       sha256sum [OPTION]... [FILE]...
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DESCRIPTION

12       Print or check SHA256 (256-bit) checksums.
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14       With no FILE, or when FILE is -, read standard input.
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16       -b, --binary
17              read in binary mode
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19       -c, --check
20              read checksums from the FILEs and check them
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22       --tag  create a BSD-style checksum
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24       -t, --text
25              read in text mode (default)
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27       -z, --zero
28              end  each  output  line  with NUL, not newline, and disable file
29              name escaping
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31   The following five options are useful only when verifying checksums:
32       --ignore-missing
33              don't fail or report status for missing files
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35       --quiet
36              don't print OK for each successfully verified file
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38       --status
39              don't output anything, status code shows success
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41       --strict
42              exit non-zero for improperly formatted checksum lines
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44       -w, --warn
45              warn about improperly formatted checksum lines
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47       --help display this help and exit
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49       --version
50              output version information and exit
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52       The sums are computed as described in FIPS-180-2.  When  checking,  the
53       input  should  be a former output of this program.  The default mode is
54       to print a line with: checksum, a space, a character  indicating  input
55       mode  ('*'  for binary, ' ' for text or where binary is insignificant),
56       and name for each FILE.
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58       Note: There is no difference between binary mode and text mode  on  GNU
59       systems.
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AUTHOR

62       Written by Ulrich Drepper, Scott Miller, and David Madore.
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REPORTING BUGS

65       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
66       Report any translation bugs to <https://translationproject.org/team/>
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69       Copyright  ©  2022  Free Software Foundation, Inc.  License GPLv3+: GNU
70       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
71       This is free software: you are free  to  change  and  redistribute  it.
72       There is NO WARRANTY, to the extent permitted by law.
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SEE ALSO

75       cksum(1)
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77       Full documentation <https://www.gnu.org/software/coreutils/sha256sum>
78       or available locally via: info '(coreutils) sha2 utilities'
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82GNU coreutils 9.1                  May 2023                       SHA256SUM(1)
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