sha224sum - compute and check SHA224 message digest

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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

-t, --text
read in text mode (default)

The following three 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

-w, --warn
warn about improperly formatted checksum lines

--strict
with --check, exit non-zero for any invalid input

--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 type (`*' for
binary, ` ' for text), and name for each FILE.

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

REPORTING BUGS
Report sha224sum bugs to bug-coreutils@gnu.org
GNU coreutils home page:
General help using GNU software:
Report sha224sum translation bugs to ject.org/team/>

COPYRIGHT
Copyright © 2011 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later .
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
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.

GNU coreutils 8.12.197-032bb September 2011 SHA224SUM(1)