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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)
Note: There is no difference between binary and text mode option on GNU system.

--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 character indicating input mode ('*' for binary, space for text), and name for each FILE.

GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report sha224sum translation bugs to <http://translationproject.org/team/>

Written by Ulrich Drepper, Scott Miller, and David Madore.

Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.

The full documentation for sha224sum is maintained as a Texinfo manual. If the info and sha224sum programs are properly installed at your site, the command
info coreutils 'sha224sum invocation'

should give you access to the complete manual.

November 2020 GNU coreutils 8.22

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