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Package containing this man page: core/coreutils (version 8.28-1)

SHA224SUM(1) User Commands SHA224SUM(1)

NAME

sha224sum - compute and check SHA224 message digest

SYNOPSIS

sha224sum [ OPTION]... [FILE]...

DESCRIPTION

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)

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.

AUTHOR

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

REPORTING BUGS

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

COPYRIGHT

Copyright © 2017 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.

SEE ALSO

Full documentation at: <http://www.gnu.org/software/coreutils/sha224sum>
 
or available locally via: info '(coreutils) sha2 utilities'
September 2017 GNU coreutils 8.28