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NAME | SYNOPSIS | DESCRIPTION | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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SHA224SUM(1) User Commands SHA224SUM(1)
sha224sum - compute and check SHA224 message digest
sha224sum [OPTION]... [FILE]...
Print or check SHA224 (224-bit) checksums.
With no FILE, or when FILE is -, read standard input.
-b, --binary
read in binary mode
-c, --check
read SHA224 sums from the FILEs and check them
--tag create a BSD-style checksum
-t, --text
read in text mode (default)
-z, --zero
end each output line with NUL, not newline, and disable
file name escaping
The following five options are useful only when verifying checksums:
--ignore-missing
don't fail or report status for missing files
--quiet
don't print OK for each successfully verified file
--status
don't output anything, status code shows success
--strict
exit non-zero for improperly formatted checksum lines
-w, --warn
warn about improperly formatted checksum lines
--help display this help and exit
--version
output version information and exit
The sums are computed as described in RFC 3874. When checking,
the input should be a former output of this program. The default
mode is to print a line with checksum, a space, a character
indicating input mode ('*' for binary, ' ' for text or where
binary is insignificant), and name for each FILE.
Note: There is no difference between binary mode and text mode on
GNU systems.
Written by Ulrich Drepper, Scott Miller, and David Madore.
GNU coreutils online help:
<https://www.gnu.org/software/coreutils/>
Report any translation bugs to
<https://translationproject.org/team/>
Copyright © 2020 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute
it. There is NO WARRANTY, to the extent permitted by law.
Full documentation
<https://www.gnu.org/software/coreutils/sha224sum>
or available locally via: info '(coreutils) sha2 utilities'
This page is part of the coreutils (basic file, shell and text
manipulation utilities) project. Information about the project
can be found at ⟨http://www.gnu.org/software/coreutils/⟩. If you
have a bug report for this manual page, see
⟨http://www.gnu.org/software/coreutils/⟩. This page was obtained
from the tarball coreutils-8.32.tar.xz fetched from
⟨http://ftp.gnu.org/gnu/coreutils/⟩ on 2021-08-27. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
GNU coreutils 8.32 March 2020 SHA224SUM(1)
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