Section: User Commands (1)
Updated: April 2010
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sha224sum - compute and check SHA224 message digest
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
- -t, --text
read in text mode (default)
The following three options are useful only when verifying checksums:
don't print OK for each successfully verified file
don't output anything, status code shows success
- -w, --warn
warn about improperly formatted checksum lines
display this help and exit
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 type (`*' for binary, ` ' for
text), and name for each FILE.
Written by Ulrich Drepper, Scott Miller, and David Madore.
Report sha224sum bugs to firstname.lastname@example.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report sha224sum translation bugs to <http://translationproject.org/team/>
Copyright © 2010 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
is maintained as a Texinfo manual. If the
programs are properly installed at your site, the command
info coreutils 'sha224sum invocation'
should give you access to the complete manual.
- The following three options are useful only when verifying checksums:
- REPORTING BUGS
- SEE ALSO
This document was created by
using the manual pages.