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.
The
following four options are useful only when verifying
checksums:
−−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.